首页
登录
职称英语
Seed catalogues feature hundreds of different flowering species. For the per
Seed catalogues feature hundreds of different flowering species. For the per
游客
2023-10-17
45
管理
问题
Seed catalogues feature hundreds of different flowering species. For the person just beginning a garden this can be bewildering, and below are the details of some popular choices, nearly all of which should be sown in the spring. With the exception of busy lizzies, which need a little care, they are all very easy to grow from seed.
Dahlias
These are sturdy plants bearing showy flowers in a wide range of rather gaudy colours. Sow in a frame in April and plant the seedlings out when frosts are over. Dahlias flower throughout the summer and into the autumn. When autumn frosts begin to make them look unhappy, you should dig up the tuberous roots and save them. A frost-free loft, shed or garage is the ideal place. The following spring you plant the tubers instead of sowing seed again.
Lupins
Lupins are hardy perennials. This means that the plants will stay in your garden and carry on flowering year after year. Seed sown in April will usually give you some spikes of colours in the first summer, and year by year the plants get bigger and the flowering stems get taller and grander. Selective breeding has led to the introduction of some fine, bicoloured varieties in some dazzling
shades. The short-lived flowers make a real midsummer spectacle.
Busy lizzies
Like dahlias, busy lizzies need to be started off under glass, as they cannot stand frost and planting out is best done in May. Outdoor flowering ends in September, so beat the frosts and bring your favourite specimens indoors to give your home some sinter colour! Indoors they will carry on flowering indefinitely, though you may like to plant them out a-gain when spring returns. Like pansies(below)they do very well in sun or shade, but the soil must be moist. Most varieties grow to a height of only 20 cm or so.
Potentillas
Potentillas are hardy shrubs. In other words, the woody branches spring from ground level— there is no central trunk. The seed is probably best sown in autumn, in which case you should keep the plants in a sheltered spot until April offers favourable conditions for planting out. Once flowering begins in early summer the best varieties(such as Melton Fire)will stay in bloom almost ceaselessly for years on end while at the same time spreading out to provide ground cover or a low hedge.
Pansies
Pansies have a good long flowering season year after year, and some varieties can be sown in spring to give truly splendid results the first autumn. Unlike dahlias and lupins, which can easily grow a metre tall, pansies grow no higher than 10 or 20 cm. Their soil, position and moisture requirements are just like those of busy lizzies but pansies differ in being hardy. Give them a try! [br] Brought indoors in autumn, dahias, busy lizzies and potentillas will carry on flowering almost non-stop.
选项
A、TURE
B、FALSE
答案
B
解析
介绍dahias的第二段提到When autumn frosts begin to make them look unhappy,youshould dig up the tuberous roots and save them。故此说法不正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3105517.html
相关试题推荐
Today,nearlyeveryoneagreesthatitiswrongtotreatsomeonedifferently
Today,nearlyeveryoneagreesthatitiswrongtotreatsomeonedifferently
Whichdieisdifferentfromtheotherthree?[img]2012q2/ct_eyyjsdz2006a_eyyjsdi
—So,whatdidyouthink?—Really,notatallbad.She’sdifferentfromhowshe
Aroundtheworld,musictherapyisbeingusedtotreatdifferentmedicalcon
Aroundtheworld,musictherapyisbeingusedtotreatdifferentmedicalcon
Aroundtheworld,musictherapyisbeingusedtotreatdifferentmedicalcon
Aroundtheworld,musictherapyisbeingusedtotreatdifferentmedicalcon
[img]2012q2/ct_eyyjsdz2007b_eyyjsdreadd_0632_20121[/img]Summary:Different
[img]2012q2/ct_eyyjsdz2007b_eyyjsdreadd_0632_20121[/img]Summary:Different
随机试题
【B1】[br]【B5】A、didn’tB、didC、wouldD、wouldn’tA正因为Mrs.O’Neill了解学生一般怎样在考试中作弊的,
Withmoreandmoreparentsworkingoutsidethehome,studentsareveryaware
关于水利工程缺陷责任期,下列说法不正确的是( )。A.水利工程缺陷责任期从通过
A.使估计量从非一致变为一致 B.使估计量从有偏变为无偏 C.减弱多重共
以下哪项是对信息的充分性评价的实质性因素?A.信息必须良好记录,且在工作底稿中能
根据继电保护和安全自动装置缺陷通用归类原则,继电保护和安全自动装置信息、故障录波
根据现行国家标准《细水雾灭火系统技术规范》GB50898—2013的规定,对细
某次拔河比赛,最终甲乙两班进入决赛。已知,甲班人数比乙班多。甲班男女生人数之比为
0,0,6,24,60,120( )。A.180 B.196 C.210
(2017年真题)劳动者因()而解除劳动合同是不符合法律规定的。A.用人单
最新回复
(
0
)