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Miss Chen
2018年03月19日
Miss Chen
Description: This annual or biennial wildflower develops ascending to sprawling stems about 1½–3' long. The stems are light green to reddish green and pubescent with short spreading hairs. Either opposite or alternate leaves occur at intervals along the stems; the leaf blades are up to 3" long and 3" across and deeply cleft into 3-5 palmate lobes. The leaf margins are sparingly dentate or further divided into small secondary lobes. The upper leaf surfaces are medium green and hairless (or sparingly so), while the their lower surfaces are pale green and pubescent. The petioles are light green and pubescent. At the base of each petiole, there is a pair of small linear stipules. From the axils of the middle to upper leaves, clusters of 2 or more flowers develop on slender pubescent stalks; these stalks are about ¾–1½" long at maturity. Each flower is about 1/3" (8 mm.) across, consisting of 5 light pink petals, 5 green sepals, 10 stamens, and a pistil. Fine pink lines radiate from the throat of each flower. The petals are oblong in shape and slightly notched at their tips. The sepals are lanceolate to ovate and pubescent; each sepal has an awn-like tip about 1.5 mm. long. The blooming period occurs during the summer and lasts about 2 months. Usually, only a few flowers are in bloom at the same time. Each flower is replaced by a narrow columnar fruit about ½–¾" long that tapers to a short beak. At maturity, the fruit splits open into 5 slender sections from the bottom, remaining connected together at the apex. By this process, the seeds are mechanically ejected from the mother plant. Cultivation: The preference is partial sun, mesic to dry-mesic conditions, and cool to warm summer temperatures. Different kinds of soil are tolerated, including those that are sandy or rocky. Range & Habitat: Northern Cranesbill is restricted to NE Illinois, where it is rare and native to the area (see Distribution Map). This species is state-listed as 'endangered.' Illinois lies at the southern range-limit of this boreal wildflower. Habitats include woodland openings, sandy Black Oak woodlands, typical and sandy savannas, and rocky outcrops. This wildflower becomes more abundant after a wildfire; there is some evidence that its seeds germinate in response to heat and/or light. [图片]Faunal Associations: The flowers are pollinated by small flies (particularly Syrphid flies) and small bees (particularly Halictid bees). Both nectar and pollen are available as floral rewards to such visitors. One insect that sucks on the juices of Geranium spp. is Macrosiphum geranii (Geranium Aphid). The seeds of some Geranium spp. are eaten by such birds as the Mourning Dove and Bobwhite Quail to a limited extent. Photographic Location: A nature preserve in Cook County, Illinois. The photographs were taken by Lisa Culp (Copyright © 2009). Comments: This is one of several annual or biennial Geraniums (Geranium spp.) in Illinois. The majority of these species have been introduced from Eurasia, although some of them are native. All of these species have relatively small flowers, palmately cleft simple leaves (see exception below), and a sprawling to ascending habit. As a result, they can be difficult to distinguish from each other. Northern Cranesbill can be identified through the following combination of characteristics: 1) It produces small flowers (about 1/3" across) in clusters of 2 or more, 2) the stems and stalks of the flowers are pubescent with short spreading hairs, 3) the pedicels of the flowers/fruits are longer than the sepals, and 4) the sepals have awn-like tips. One aberrant species in this group, Herb Robert (Geranium robertianum), differs from the others by its leaves, which are palmately divided into leaflets with petioles.
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Miss Chen
2018年03月19日
Miss Chen
Description: This wildflower is an annual or biennial about ½–2' tall. Small plants are unbranched or sparingly branched, while large plants form frequent lateral stems in the upper leaf axils. The stems are light green to reddish purple, 4-angular, and slightly winged; the central stem is erect, while the lateral stems curve upward. Pairs of opposite leaves occur along each stem, each pair rotating about 90° from the pair of leaves immediately below. The leaves are up to 2½" long and about half as much across, becoming slightly smaller as they ascend the stems. The leaves are ovate-cordate to ovate, sessile or slightly clasping at their bases, and smooth along their margins. Their upper surfaces are yellowish green, green, or tinted slightly purple; each leaf has 3-5 parallel veins. Both the stems and leaves are hairless. The central stem and upper lateral stems (if present) terminate in clusters of 3-7 flowers on short pedicels. Frequently, there are additional clusters of 1-5 flowers from the axils of the upper leaves. All of these flowers are held stiffly erect. Each flower is about ¾" long and ¼" across; it has a long tubular corolla and a short green calyx with 5 slender teeth. The apex of each corolla has 5 triangular lobes that fold together to form a point; the corolla is closed or nearly so. There are no interconnecting fringes to join these lobes. The corollas are blue-violet, purple, or nearly white; they have fine purple veins along their sides. Inside each corolla, there are five stamens and a pistil. The erect lobes of the calyx are narrowly oblong-lanceolate in shape. Underneath the clustered flowers, the leaves are reduced to leafy bracts. The blooming period occur from late summer to mid-fall and lasts about 1-2 months. There is no noticeable floral scent. Each flower is replaced by a seed capsule that dividesDistribution Map into 2 parts to release the numerous tiny seeds. These seeds are distributed by wind and water. The root system consists of a taproot. This wildflower reproduces by reseeding itself; it does not spread vegetatively. Cultivation: The preference is full sun to light shade, moist to dry conditions, and a somewhat barren soil containing clay or rocky material. Competition from taller plants should be restricted. The size of individual plants and the abundance of their flowers can vary considerably depending on the availability of moisture and nutrients. Range & Habitat: The native Stiff Gentian is occasional in the northern half of Illinois, while in the southern half of the state it is rare or absent. Populations of this species may be declining. Habitats include hill prairies, upland savannas, thinly wooded slopes, rocky meadows, banks of streams in wooded areas, calcareous seeps, and edges of cliffs. This species is usually found in high quality natural habitats, often where limestone is close to the ground surface. Faunal Associations: So far, information about floral-faunal relationships for this species has not been encountered. The long tubular shape of the closed corollas suggests that long-tongued bees cross-pollinate the flowers. Photographic Location: The edge of a partially shaded cliff at the Pine Hills Nature Preserve in west-central Indiana. Comments: Like several other gentian species, the flowers of Stiff Gentian provide attractive blue-violet color during the fall; this is one of the last species to remain in bloom. Stiff Gentian in Illinois consists of var. occidentalis; the typical variety is found east of Ohio. Stiff Gentian is easily distinguished by its peculiar flowers, which are shorter (1" long or less) and more narrow (¼" across) than the flowers of other gentians with closed corollas. Sometimes, Stiff Gentian is still referred to as Gentiana quinquefolia, but this genus has been reserved for the perennial gentians, of which there are several species still extant in Illinois.
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Miss Chen
2018年03月19日
Miss Chen
Description: This perennial plant is 1-2' tall, with a stout smooth stem that is unbranched. The yellowish or olive green leaves are opposite and strongly clasp the central stem. However, the three leaves beneath the uppermost flowers are whorled. These leaves are broadly lanceolate, ovate, or cordate, and extend up to 3" long and 2" across. There is a prominent central vein, and two side veins that parallel the smooth margins. In the upper half of the plant, 2-7 flowers emerge from the axils of the leaves, with a greater number of flowers at the apex. The tube-shaped flowers are individually about 1½" long and ¾" across, and have 5 petals with small erect tips. They are white, greenish white, or yellowish white, depending on the local ecotype. The blooming period is late summer, and lasts about 1 or 1½ months. There is no noticeable fragrance to the flowers. The seed capsules split into 2 sections, releasing numerous small seeds that can be dispersed by wind or water. The root system consists of a long stout taproot. Cultivation: The preference is full to partial sun, and moist to average soil conditions. The soil can contain significant amounts of loam, clay, gravel, or sand. Starting plants from seed can be tricky, while transplants are much easier to manage. A yellowish appearance of the leaves is a common reaction to strong sunlight or dry weather, and does not necessarily signify disease or poor health. Range & Habitat: The native Cream Gentian is a rare plant that occurs in scattered counties in Illinois (see Distribution Map). It can be found in mesic black soil prairies, where it will occasionally form sizeable colonies. Other habitats include the edges of upland forests, sandy oak savannas, limestone glades, and rocky bluffs. Populations of this plant may have occurred in other habitats, such as sand or gravel prairies, but were destroyed before they could be identified. Faunal Associations: Bumblebees are the primary pollinators of the flowers, where they seek nectar. Some beetles, such as Epicauta pensylvanica (Black Blister Beetle), have been known to knaw on the flowers. White-tailed Deer occasionally chomp off the tops of Cream Gentian plants, but it is not preferred as a food source because of the bitter leaves (personal observation). The relationship of Cream Gentian to other mammalian herbivores is not known at the present time. [图片]Photographic Location: The photographs were taken at Meadowbrook Park in Urbana, Illinois. Comments: This gentian can be easily distinguished from the others by the absence of blue in the flower. The flowers are not as closed as the Bottle Gentians (e.g., Gentiana andrewsii), but less open than the Prairie Gentian (Gentiana puberulenta). Cream Gentian also blooms about 3 weeks earlier than other gentians. Because it blends into the background of a prairie quite well, this plant can be easy to overlook, even when it is in flower. Like many other gentians, Cream Gentian has an otherworldly beauty that is oddly attractive. Another scientific name for this plant is Gentiana flavida.
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Miss Chen
2018年03月19日
Miss Chen
Description: This low deciduous shrub is 1-3' tall, branching occasionally. Young stems are yellowish green to reddish brown, pubescent or hairless, while older stems are light gray to nearly black. The wood of the stems is relatively brittle and weak. The blades of alternate leaves are 1-2¼" long and ½-1" across; they are oblong-ovate, obovate, or narrowly oval and smooth along their margins. The upper surface of the blades is yellowish green and slightly shiny, while the lower surface is dull yellowish green and more or less covered with fine resinous dots that are yellow (more visible with a 10x hand lens). The petiole is short and slender. Short fine hairs are often present on the lower blade surface and petioles. The flowers develop in raceme-like clusters from the axils of the leaves. Individual flowers are up to 1/3" (8 mm.) long and a little less across, consisting of a short yellowish green calyx with 5 broad lobes and a tubular corolla with 5 tiny lobes along its rim that are strongly recurved. The red corolla (rarely white) is slightly constricted toward its throat, forming an urn-like shape. Each flower also has 10 inserted stamens and a pistil with a single style. The pedicels and calyces of the flowers are covered with short fine hairs and/or yellow resinous dots. The blooming period occurs from late spring to early summer, lasting about 3 weeks. Later, the flowers are replaced by globoid berries up to 1/3" (8 mm.) across. These berries are initially green, but they become blue-black at maturity. The interior of each berry is fleshy and sweet; it contains 10 seeds, which are individually up to 2 mm. long. The woody root system is shallow and branching; it can develop clonal offsets from underground runners. Colonies of plants are often produced. The leaves turn red during the autumn before falling to the ground. Cultivation: The preference is partial sun, mesic to dry conditions, and an acidic soil that is sandy or rocky. Plants that are grown in too much shade may fail to produce flowers and fruit. The flowers are self-fertile, but fruit production is better when there is cross-pollination. Range & Habitat: Black Huckleberry is a native shrub that is found primarily in northern and southern Illinois (see Distribution Map), where it is occasional in sandy or rocky areas. Elsewhere in the state, it is rare or absent. Habitats consist of upland rocky woodlands, wooded slopes, sandy savannas, openings in sandy woodlands, sandy shrub prairies, rocky bluffs and sandstone cliffs, sandy or rocky thickets, and stabilized sand dunes. Outside of Illinois, this shrub is sometimes found in bogs. Because it is able to resprout from underground runners, this shrub adapts to fire-prone habitats. In sandy shrub prairies, it is occasionally the dominant plant. [图片]Faunal Associations: The flowers are cross-pollinated primarily by honeybees, bumblebees, and Andrenid bees. Other floral visitors include the Karner Blue butterfly and various Syrphid flies. These insects seek primarily nectar from the flowers, although the Syrphid flies probably feed on the pollen. The caterpillars of the butterfly Callophrys henrici (Henry's Elfin) feed on Black Huckleberry, as do the caterpillars of several moths, specifically: Amorbia humerosana (White-Lined Leafroller), Chrysanympha formosa (Formosa Looper Moth), Croesia curvalana (Blueberry Leaftier), Cyclophora pendulinaria (Sweet Fern Geometer), Melanomma auricinctaria (Gold-Lined Melanomma), Pangrapta decoralis (Decorated Owlet), Psectraglaea carnosa (Pink Sallow), Sphinx gordius (Gordian Sphinx), Synchlora aerata (Wavy-Lined Emerald), and Zomaria interruptolineana (Broken-Lined Zomaria). Another insect that feeds on Black Huckleberry is Melanoplus fasciatus (Huckleberry Spur-Throated Grasshopper). [图片]Among vertebrate animals, the fruit is eaten by many species of upland gamebirds and songbirds (see Bird Table). Mammals that eat the fruit include the Gray Fox, Red Fox, Raccoon, Opossum, Striped Skunk, Fox Squirrel, Gray Squirrel, Eastern Chipmunk, and White-Footed Mouse. Dense colonies of Black Huckleberry in shrub prairie provide nesting habitat for the Northern Harrier and probably other birds. Such colonies provide protective cover for small animals. Photographic Location: The photo of the flowers was taken in a sandy savanna at the Oak Opening Nature Preserve in NW Ohio, while the photos of the leafy shrub, twig, and leaf underside were taken in an upland rocky woodland near a ravine at The Potholes in west-central Indiana. [图片]Comments: The berries of huckleberries are very similar to the berries of blueberries, except the latter usually contain more seeds (8-20) that are smaller in size. The foliage and woody stems of Black Huckleberry are quite similar to those of low-bush blueberries (particularly Vaccinium pallidum), except the leaf undersides of the former shrub are covered with resinous yellow dots, while the leaf undersides of blueberries lack such resinous dots. In Illinois, Black Huckleberry is the only species in its genus, although other huckleberry species can be found in the southeastern United States.
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Miss Chen
2018年03月19日
Miss Chen
Description: This herbaceous plant is a monocarpic perennial. It persists as a rosette of 3-30 basal leaves for 5-15 years (or more), finally bolting as a flowering plant that becomes 3-8' tall for a single season, and then dying. The basal leaves are up to 14" long and 4" across; they are oblong-elliptic to broadly oblong-elliptic in shape and smooth along their margins. The upper surfaces of the basal leaves are medium green and glabrous with prominent central veins; they are deciduous. The central stem of a flowering plant is light green to purple, glabrous, terete (circular in cross-section), rather stout, and unbranched. Along its entire length, there are whorls of 4-5 leaves (rarely more) that become gradually smaller in size as they ascend the central stem. Individual whorled leaves are 3-12" long and ¾-3" across; they are oblong-elliptic, oblong-lanceolate, or oblong-oblanceolate in shape with smooth margins. The upper surfaces of these leaves are dark green and glabrous with prominent central veins; they are also deciduous. The central stem terminates in a panicle of flowers up to 2' long (typically 50-100 flowers per panicle). This panicle is narrowly pyramidal in shape with spreading to ascending lateral branches. The terminal branches produce clusters of 2-6 flowers each on pedicels ¾-2" long. Each flower is ¾-1¼" across, consisting of a shallow corolla with 4-5 spreading petaloid lobes, a shallow calyx with 4-5 spreading lobes, 4-5 stamens, and a superior ovary with a single style. Usually, the flowers are divided into 4 parts, rather than 5. The corolla lobes are oblong-lanceolate or oblong-elliptic in shape; they are mostly greenish white with purple specks or streaks, although their bases may be tinted pale yellow or pale pink. Toward the middle of each corolla lobe, there is a conspicuous nectar pad that is heavily fringed. The bases of these nectar pads are surrounded by rings of green. The calyx and its lobes are medium green and glabrous; individual lobes are linear-lanceolate and up to ½" long. The superior ovary is light green. The peduncle, lateral branches, and pedicels of the inflorescence are light green to purple, glabrous, and terete. At locations where there are divergent branches within the inflorescence, there are pairs of leafy bracts about 1-3" long that are linear-lanceolate or linear-oblong in shape. The blooming period occurs from late spring to early summer, lasting about 3 weeks. The flowers within a panicle bloom at about the same time. Individual plants in a colony have a tendency to bloom synchronically (during the same year at the same time), which facilitates cross-pollination of the flowers. Afterwards, the flowers are replaced by ovoid seed capsules about ½-¾" in length; these capsules are strongly beaked from the persistent styles. At maturity, these capsules become dark brown and split open to release their seeds. Each capsule contains 4-14 dark brown seeds that are crescent-shaped and winged. The root system consists of a fleshy taproot. [图片]Cultivation: The preference is full sun to light shade, mesic to dry-mesic conditions, and calcareous soil that is loamy, rocky, or sandy. The seeds require a dormant period with cool moist stratification in order to germinate. Because this plant persists as a rosette of basal leaves for several years, it is slow to develop, and its seeds are not often available commercially. Problems with disease organisms or insect pests rarely occur. Range & Habitat: The native American Columbo is occasional in the southern half of Illinois, rare (or possibly extirpated) in NE Illinois, and absent from the rest of the state (see Distribution Map). Illinois lies along the NW range limit of this species. Habitats include upland savannas, upland woodlands, wooded slopes, limestone and sandstone glades, woodland openings, and small meadows in upland wooded areas. In areas near southern Lake Michigan, this plant occurs in similar habitats with calcareous sand. American Columbo is often associated with upland oak trees and such ferns as Asplenium platyneuron (Ebony Spleenwort) and Polystichum acrostichoides (Christmas Fern). It is found in higher quality natural areas. Faunal Associations: The flowers are cross-pollinated primarily by such long-tongued bees as honeybees, bumblebees, and Anthophorine bees (Anthophora spp.); these insects obtain mostly nectar from the flowers. Aside from these pollinators, there are few records of floral-faunal relationships for American Columbo. The basal leaves of more western species in the same genus, sometimes referred to as 'Elkweed,' are eaten occasionally by elk and other hoofed mammalian herbivores. However, evidence of such browsing hasn't been observed by the author for the more eastern American Columbo. [图片]Photographic Location: A rocky wooded slope in southern Illinois and an upland woodland in east-central Illinois. Comments: American Columbo is an unusual native plant that has a tall striking appearance when it finally bolts and blooms. The greenish white flowers with purplish specks or streaks have an odd appearance; they are produced in great abundance during the blooming period. Even though the flowers of American Columbo have conspicuous nectar pads like some species in the Lily family (Liliaceae), such as Melanthium virginicum (Virginia Bunchflower) and Veratrum woodii (False Hellebore), it is not closely related to these latter species (the former species is a dicot, while the latter are monocots). The Frasera genus is a small group of plants that are found primarily in western North America. American Columbo is the only eastern species, making flowering plants easy to identity. Immature plants consisting of basal leaves, however, can be confused with the immature stage of False Hellebore. An obsolete scientific name for American Columbo is Swertia caroliniensis.
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八公
2018年03月18日
八公
[图片]介壳虫 简介：这是一种非常常见的害虫，全世界已经的种类已经达到六千多种，我国记载的种类一共有六百五十多种，其中有一百六十种属于农业上的害虫。它的多发期在春季。 主要危害：它们经常群居在枝条、叶片或者果实等部位，吸取植物的汁液维持生命。如果它们数量非常多的话，可能会导致叶片全部枯萎、果实萎缩，严重时甚至会导致整体的死亡。 防治方法：首先可以使用人工防治的方法，这种方法针对害虫不是很多、受害的枝叶也不是很多的情况，可以直接用软刷子将害虫刷掉，或者将有害虫的枝条给剪掉。如果数量非常多的话，我们可以喷洒药剂进行防治，比如百分之四十的氧化乐果一千倍药剂，每间隔一个星期左右一次，一共两到三次。 蚜虫 简介：它也叫“蜜虫”，会群居在植株的叶子、茎、花苞、顶芽等位置。它的多发期也是在春季。 危害：同上一种害虫一样，它们也会吸取汁液，使植株发生皱缩、畸形的现象，如果严重的话也会导致其枝叶完全枯萎，植物死亡。另外，这种虫子分泌的物质还会诱发其他的疾病。 防治方法：对付这种害虫，我们一般会采取喷洒药液的方式，比如吡虫啉一千五百到两千倍的药液，效果不错。
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权问薇
2018年03月18日
权问薇
[图片]1、种子的获取 在获取它种子的时候，我们可以有两种途径去得到。一种就是可以直接去购买现成的回来种，还有一种呢，就是要自己去采收。如果自己去采收，就要记住一定等到它的果实完全成熟才能去采摘。一般它的果实是在冬天的时候依次成熟，然后等到它的果子颜色变成紫黑色的时候，我们就可以去采摘了，采摘好之后，先把果实的外皮给剥掉取出来种子，然后再把种子洗干净就可以去种了。 [图片]2、播种的介质 在选用播种的介质时，是非常自由的。可以用一些播种的泥炭，也可以用园土加上一些蜂窝煤，这些都是可以的。但是我还是建议在选用介质的时候，尽量选一些透气和排水好的介质，这样才是最符合它生长所需的。 [图片]3、播种 它在种的时候，不适合种的太深，只要均匀的把它撒在介质表面上就可以了，然后再给它盖一层，土的厚度也不能太厚，只要看不到种子就可以了。之后为了给它更好的保湿，我们可以找来一块玻璃盖在上面，如果没有玻璃，用薄膜盖在上面也可以。盖好之后，就可以将它放在阳光较充足的地方了，并要把温度保持18度以上最好。至于它发芽的时间，这个是不确定的。有时候2星期之后就会发芽，但是有时候要等上3到4星期之后才可以发芽，所以我们一定要有足够的耐心去等待。 [图片]4、后期养护 等到种子发芽了之后，我们就可以把上面的玻璃或者薄膜拿掉了，然后就可以正常养护了。等到小苗有3到4厘米高的时候，那我们就可以对它们进行移栽了，移栽之后，一定要合理的去浇水，不能太勤了，不然容易给小苗带来伤害，另外为了让它更快长大，还要施加一定的薄肥哦。
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曹秋柳
2018年03月18日
曹秋柳
入冬后不少花友想了解盆栽菊花冬天怎么养，我们从花后修剪、冬季浇水、施肥等环节来说说冬季的养护方法，以便花友的菊花能顺利过冬。 [图片]1、花后修剪：入冬后，菊花基本也都凋谢了，这个时候我们第一件要做的事就是修剪，不少花友希望看到菊花冬天怎么修剪图片(上图)， 花谢之后，如果脚芽已经长的过高，可以直接将老枝剪除， 如果脚芽未出，只剪掉老枝的一半。留几片叶子，给脚芽供给营养，脚芽在天暖健康生长时，再剪掉老枝。 2、放置位置： 菊花虽耐寒，但不能不管。一般放置于背风向阳的位置， 比如南面房檐下， 冷棚 ，向阳地窖等，晚上的气温不低于0度不高于5度最佳。 使菊花的脚芽休眠又不至于高温徒长。 选择地栽的， 北方太冷可以盖干草或者覆膜。白天通风见光。 3、冬天浇水：菊花冬季应该处于半休眠状态， 所以对水的需求不大，但又不能干旱。如果发现盆土过干，脚芽的叶子出现萎焉，是土过于干燥造成脚芽根系枯死所致， 冬季应该根据盆土的干燥情况， 保障土壤 不干透，又不过湿。浇水选择晴天的午后，气温高时进行。 4、花后是否施肥：菊花是需肥量非常大的花卉，尤其是在开花期时，消耗了非常多的盆土营养， 所以在花期后， 可以随水补充一定的肥料， 当然，不能像平时一样施肥，应该拉长施肥时间的间隔浓度也应该是平时的一半最好， 如平时生长期，6天一次施肥1000倍水溶肥， 冬季可以10天，甚至半月一次，浓度最好2000倍以上。 5、花后添土及换盆的选择： 一般盆栽的菊花，花期消耗了非常多的盆土营养，可以在花期后，给花盆里填入一些新土或者堆肥，给脚芽的发育补充营养。地栽可以覆新土，一则防脚芽冻伤，二则补充脚芽营养。 至于换盆，主要针对花市购买的成品花，现在基于成本考虑，大多数花弄选择的花盆较小，很多小菊花用的都是12-15厘米的盆，用土也普遍是椰糠 泥炭等无营养的基质，所以剪除残花后，换至稍大一点的盆内，如15的盆，可以换至18厘米的盆内，切勿直接换太大的， 以免根系发育慢，水分富余造成烂根。 6、冬季菊花管理其他事宜： 冬天的事情相对较少，可以准备来年用土， 提前堆肥，避免事情扎堆手忙脚乱。 清理残枝，残花，残叶等。 打扰种植场所，主要可以防止病虫藏匿于残叶内越冬。尤其是红蜘蛛等。冬季打扫干净，可以很大程度减轻春季病虫爆发的几率。
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权问薇
2018年03月18日
权问薇
[图片]一、做好防冻措施 茉莉耐寒性较弱，在冬季稍显脆弱的，需要花友们做好越冬的防冻的措施。进入初冬时，气温逐渐下降，这时候我们可以把茉莉花保持在室外环境，这样茉莉可以适当地经历气温下降的过程，在对环境的适应中，整个会有相应的变化，而从自身做到迎接寒冬的准备。当气温继续下降，最低气温达到约5度左右时，我们得把茉莉搬到室内环境，但是仍然要注意保持在有充足光照的地方。如果室内没有采暖设施，室内最低温度降到0度以下，我们要采取一些保温措施，比如加双层塑料袋保护。 [图片]二、控制浇水量 平常的一些浇水方法可不能用在冬季的茉莉身上。因为在冬季，茉莉是会休眠的，这时候它对水分并没有太多要求。一般冬季我们只需要保持花盆土壤内部较为湿润就差不多了，多久浇一次呢？小编推荐是2-3周一次，浇水少量，或者在底部盆托少量浇水就行了。尤其要注意的一点是，气温陡降时，切记不要浇水，要选取适合的时机，比如气温稍微回升的时候，阳光比较充足的中午也是可以的。 [图片]三、适当进行修剪 任何花朵都需要修剪，适当的修剪多余的枝叶能保持花朵的造型，促进花朵更好的生长。茉莉花生长速度较快，每年都会长出大量新枝条。在冬季快要来临时，我们需要对其进行适当地修剪。我们修剪新生的枝条，适当剪短一部分老枝，将细小柔弱的枝条剪去，留下适当的叶片。 [图片]
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2018年03月18日
权问薇
[图片]一．要控制好光照： 因为蟹爪兰刚刚才嫁接好，它脱离本来的植株不久，很容易会因为失去太多的水分而变得枯萎焉掉，所以这个时候一定不可以直面照射太多的阳光，要把它转移到阴凉的地方，尽可能地减少它的水分的蒸发。 [图片]二．要调节好水分： 这种植物嫁接好后，最好是适量地给它浇水，做到保持盆里的泥土略微地湿润就好，通常的情况是，3到4天浇一次水，浇水的时候一定要小心，以防会有水进入嫁接的切口。 [图片]三．要把控好施肥量： 要给它适当的施加肥料。如果在嫁接后，过了半个月它都没有焉掉的话，就代表它已经成活了下来，这样的话，就可以在一个月后给它适量地施加肥料，来满足它成长所需要的养分。 [图片]四．特别提醒 1、要给它及时地搭上架子。因为蟹爪兰刚刚嫁接成功成活了下来，它自己本身的茎叶会比较软，所以在它成长的途中要给它及时地当一个架子固定好并且可以绑缚它，最后达到保持它形状能够完整又美观的目的。 2、要及时地防止它生病还有治理它周围的蚊虫。这种植物很容易得腐烂病，如果一旦得病，可以用已经消毒过的小刀给它刮掉腐烂的部分，同时用硫磺粉涂上去给它消毒。喜欢这种植物的虫子通常是介壳虫和蚜虫。如果有虫子，但是数量比较少的时候，可以用毛刷给它刷掉；如果数量比较多，可以用勾兑后的药水喷上去杀掉害虫，然后隔20天后再给它喷一次。
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