Getting it to bloom

Why won't my wood small-reed bloom? (and how to make it flower)

Also called wood small-reed, bushgrass, feather grass (Calamagrostis epigejos).

More about wood small-reed

About wood small-reed

Calamagrostis epigejos · also called wood small-reed, bushgrass · flowering

Wood small-reed is a tough, rhizomatous European and Asian cool-season grass that colonises disturbed ground, roadsides, woodland edges, and dry to moderately moist soils. It produces tall, upright stems with large, fluffy purple-tinged panicles in midsummer that age to buff and persist well into winter. Valued for naturalised plantings and difficult dry-slope stabilisation.

Plant type: flowering

Watch for — Difficult to remove: Once established, the deep rhizome network is hard to eradicate; remove before flowering if control is needed, as it also self-seeds freely.

The reasons wood small-reed isn't blooming

Almost every non-blooming wood small-reed traces back to one of these, roughly in order of how common they are:

Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
The plant has not been deadheaded, so it stops flowering once it sets seed.
Irregular watering — drought or waterlogging at the budding stage makes buds abort.
It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding wood small-reed a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

The fix — how to get wood small-reed to flower

Maximise sun. Give wood small-reed the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
Water consistently. Keep moisture even through budding and flowering — drought-then-flood swings make buds drop.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for wood small-reed and get the feeding right with the wood small-reed fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

wood small-reed flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

Post-bloom care so it flowers again

Deadhead, keep feeding lightly, and many will rebloom; collect seed from the best plants at the end of the season if you want to grow them again.

For everything else this plant needs day to day, see the full wood small-reed care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

wood small-reed blooming — frequently asked questions

Why won't my wood small-reed flower?

wood small-reed blooms on the season's growth given enough sun, warmth and the right feed — there is no cold or photoperiod trick, just good growing conditions and a bloom-leaning feed. The most common reason it is not happening: Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.

How do I make wood small-reed bloom?

Give wood small-reed the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.

When does wood small-reed normally bloom?