Popular bulbs, corms, rhizomes etc……… the non-fibrous rooted plants. Part 1.

With the early spring flowers coming mainly from plants which aren’t fibrous rooted I thought a description of some of the genera would be topical. I don’t claim this to be a comprehensive list as the variety of plants and their preferences is too wide a subject to cover and many books have been written about them. In the case of where to plant, this in itself is impossible to generalise as even a single genus can have originated from diverse locations and climatic conditions. This is then an overview of those plants that I have grown and my own experience.

Alliums

Allium karataviense ‘Ivory Queen’
Allium neapolitanum
Allium ‘Purple Splendour’
Allium sphaerocephalon
Allium crystalis

Alliums are no longer thought of as glorified onions but as a useful addition to any border. They have benefited from being marketed well by the bulb companies and are relatively easy to produce. Beware of advertisements offering allium collections at cheap prices as they very often include such as A.sphaerocephalon which in itself is attractive but the bulbs are tiny and the flowers are very small so check the varieties before you buy. The received advice is to plant the bulbs in a sunny border at least 6″ deep, although this doesn’t apply to the smaller bulbs and should be treated as a guide only. Personally I have successfully grown them in a quite shaded mixed border in proximity to deciduous shrubs, they benefit by being left alone where they will quite happily multiply forming attractive clumps. Many of the early ones poke through the ground with, or just after, the spring flowering bulbs but it is best to be aware that the large strapped shaped leaves can become very unsightly after flowering so planting amongst herbaceous perennials that will hide them is a good idea.

Nectaroscordum siculum syn. Allium siculum, Allium nectaracsardium.

Nectaroscordum siculum or the Sicilian Honey Garlic is an unusual relative with beautiful pendant flowers, this one definitely needs a sunny spot, in shade it will contort its stems trying to reach the sun which I found out to my cost.

Anemone species.

Several species of anemone are grown from rhizomatous rootstocks, the best known of these are A.blanda and A.nemorosa the best known species to be grown from corms is Anemone coronaria often known as the Florists Anemone being used widely as cut flowers, the ‘De Caen Group’ are particularly noteworthy.

Anemone blanda
Anemone nemerosa. Wood anemone

I have always treated A.nemerosa as it’s name suggests as a woodlander, cool dappled shade suiting it best. Remember as a forest dweller it flowers early before the forest canopy develops and does need sun for the flowers to open. Anemone blanda is quite versatile but again needs the sun to open fully. Anemone coronaria I have never had any success with and to be frank I don’t particularly like, I always visualise it growing in orderly rows as part of a commercial enterprise in the Channel Islands where I think it is best suited and should remain.

Chionodoxa luciliae

Chionodoxa luciliae and Chionodoxa luciliae alba. Glory of the Snow.

Chionodoxas or Glory of the Snow, as their common name implies, are early spring flowering bulbs from such places as Greece and Turkey and now classified as Scilla. Easy to grow and if left to their own devices will multiply by bulblets and seed. Looks well naturalizing in grassland where they are quite at home.

Colchicum

Known as the Autumn Crocus (Colchicum autumnale) and not to be confused with Crocus sativus which also goes by the same name but is actually the Saffron Crocus. The flowers emerge at the end of summer on naked stems, hence another common name of Naked Ladies, the leaves developing after flowering.

Colchicum autumnale.

Easy to grow in any decent deep soil the main problem being remembering where they are during the summer dormancy so it is another bulb (strictly a corm) that lends itself to being naturalized in grass. Used in medicine to produce a strong anti-inflammatory best known as Colchicine which is used in the treatment of gout. Colchicum autumnale is one of several species that come from Europe and the Mediterranean so will grow in the UK, there are others that are native to Africa. Unlike crocuses they belong to the lily family.

Crocus

Crocus is a very large and diverse genus and one which I have little experience with, easy to grow from corms, plants range from the much hybridized larger late flowering “Dutch” types (Crocus vernus), like those pictured above, to the smaller early hybrids raised from such as C. chrysanthus like those below.

Crocus chrysanthus ‘Zwanenburg Bronze’
Crocus ‘Snow Bunting’

Crocuses are members of the Iris family and can be found from hot arid areas to arctic tundra although many come from the Eastern Mediterranean, probably best grown under some ground cover or in grass to make sure they are not disturbed when dormant.

The next post will feature erythroniums amongst others.

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