Information About Alliums

Alliums belong to the Alliaceae family. In total there are approximately 600-925 species of perennial bulbous plants in the family. ... Most alliums will bloom between spring and September. They're also long-lasting flowers, making them an ideal addition to the flower borders.

Do alliums come back every year?
How do you look after alliums?
Do alliums multiply?
Do alliums bloom more than once?
What month do alliums flower?
How long will allium bulbs last?
Do alliums need full sun?
Do alliums self seed?
What goes well with alliums?
Are alliums invasive?
Do globe alliums spread?
Do allium seeds turn into bulbs?

Do alliums come back every year?

The good news is that Alliums are easy to grow and they are a perennial which returns reliably every year. ... Although Alliums are in the section of spring flowering, it is true to say the majority are spring and early summer flower. There are also some varieties which flower during late summer.

How do you look after alliums?

Allium post bloom care is very easy. Simply keep the plants moderately watered until they fade to yellow and begin to shrivel. At this point, you can cut the plants down to the ground, leaving them where they are or dividing them. Allium bulbs should be divided every three or four years.

Do alliums multiply?

Alliums adore sunlight and will perform best when they can bask in it all day long. Since most of them multiply naturally, they can be left untouched in the same area for years. ... Some ornamental alliums grow more like chives and what you plant is a clump of roots rather than bulbs.

Do alliums bloom more than once?

Alliums do not repeat bloom. Trim the flower stalks down after flowering in order to send the plant's focus back into storing energy in the bulb. However, the dried flower heads are as attractive as the live flowers and many gardeners like to keep them standing.

What month do alliums flower?

Flowering time Most flower in May and June. For later flowers, try Allium sphaerocephalon for colour in July and August. Consider how you would like your alliums to combine or contrast with other early-flowering perennials in your garden.

How long will allium bulbs last?

They should look good for up to 14 days, without the need to rearrange them. Alliums make good dried flowers, too, lasting for ages indoors. I know someone who kept her perky alliums in a hallway vase – for three years!

Do alliums need full sun?

Sun or Shade: Alliums grow best in full sun, though most types will also tolerate partial shade. Hardiness Zone: The bulbs are winter hardy in zones 3-8. ... Soil Conditions: Like most other bulbs, alliums need well-drained soil and should not be planted in a soggy area.

Do alliums self seed?

A happy allium will self-seed freely. ... Either sow the seeds directly into the soil where you want them to grow, or keep in the bag in a cool place until the following spring. Most alliums germinate in 12 weeks, but it can take up to a year, so patience is required.

What goes well with alliums?

Here, large purple alliums grow in a mixed border with alstromeria, erysimum, campanula, cranesbill geraniums and lilies. The purple of the alliums is enhanced by the purple of the campanulas and erysimum, while the greens and creamy yellows provide contrast.

Are alliums invasive?

This species spreads by setting seed and/or multiplying bulbs—just enough to make a good show in my garden, but it might be more aggressive in other regions, so plant with care. ... (This species can be invasive where the climate is mild; it is on California's noxious weed list.)

Do globe alliums spread?

At dramatic heights of 3 to 4 feet, the plant produces spectacular bluish-purple blooms in early to midsummer. Globemaster allium, suitable for U.S. Department of Agriculture plant hardiness zones 6 through 10, multiplies readily and is easily propagated.

Do allium seeds turn into bulbs?

Because seeds take longer to produce edible bulbs or flowers than do seedlings, starting the seeds indoors before planting outdoors makes sense. In fact for some flowering alliums (A. ... Or, in areas with more mild winters, sow the seeds in late summer, fall or mid winter.