Allium monanthum
Family: Alliaceae
What it is like
Allium monanthum is a BULB growing to 0.1 m (0ft 4in). It is in flower from May to June, and the seeds ripen in June. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). and is pollinated by Bees, insects. The plant is not self-fertile. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Height (m): 0.1
Where it is found
Woods and thickets on hills and lower mountains all over Japan. Grassy mountain slopes and woods.
E. Asia - China, Japan.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 3
Bulb - raw or cooked. The bulb is up to 1cm in diameter. Leaves - raw or cooked. Flowers - raw. Used as a garnish on salads.
Root: includes bulbs, corms, tubers, rhizomes etc.
Medicine
Rating: 2
Although no specific mention of medicinal uses has been seen for this species, members of this genus are in general very healthy additions to the diet. They contain sulphur compounds (which give them their onion flavour) and when added to the diet on a regular basis they help reduce blood cholesterol levels, act as a tonic to the digestive system and also tonify the circulatory system.
Other
Rating:
The juice of the plant is used as a moth repellent. The whole plant is said to repel insects and moles.
Repellent: Plants that are said to deter but not necessarily kill various mammals, birds, insects etc.
How it is grown
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of the country. This species might succeed in light woodland in Britain. The following notes are based on the general needs of the genus. Prefers a sunny position in a light well-drained soil. The bulbs should be planted fairly deeply. Most members of this genus are intolerant of competition from other plants. Grows well with most plants, especially roses, carrots, beet and chamomile, but it inhibits the growth of legumes. This plant is a bad companion for alfalfa, each species negatively affecting the other. Members of this genus are rarely if ever troubled by browsing deer. Unusual in the genus for having dioecious flowers. This means that male and female flowers are borne on different plants and at least one plant of each sex needs to be grown in order for fertilization to take place.
Propagating it: Seed - sow spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle - if you want to produce clumps more quickly then put three plants in each pot. Grow them on in the greenhouse for at least their first winter and plant them out into their permanent positions in spring once they are growing vigorously and are large enough. Division in spring. The plants divide successfully at any time in the growing season, pot up the divisions in a cold frame or greenhouse until they are growing well and then plant them out into their permanent positions.
Best place to grow: Woodland Garden Cultivated Beds;
Habit: Bulb
Hardiness:
Growth:
Soil: Light (sandy), medium
Shade: Semi-shade, no shade
Moisture: Moist
Things to keep in mind
Although no individual reports regarding this species have been seen, there have been cases of poisoning caused by the consumption, in large quantities and by some mammals, of certain members of this genus. Dogs seem to be particularly susceptible.