Getting it to bloom

Why won't my Frosted Curls Sedge bloom? (and how to make it flower)

Also called Frosted curls sedge, New Zealand hair sedge, Curly sedge (Carex comans 'Frosted Curls').

More about frosted curls sedge

About Frosted Curls Sedge

Carex comans 'Frosted Curls' · also called Frosted curls sedge, New Zealand hair sedge · flowering

Carex comans 'Frosted Curls' is a fine-textured, evergreen sedge from New Zealand forming a dense mound of pale silvery-green, thread-like leaves that curl at the tips to create a fountain effect. It performs best in full sun to partial shade with consistently moist but well-drained soil, and is prized for year-round structure in pots and borders. The most important care point is to avoid bone-dry conditions — the fine foliage browns at the tips quickly if the root zone dries out completely. ASPCA does not list Carex species as toxic; this sedge is considered pet-safe.

Plant type: flowering

The reasons frosted curls sedge isn't blooming

Almost every non-blooming frosted curls sedge 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 frosted curls sedge 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 frosted curls sedge to flower

Maximise sun. Give frosted curls sedge 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 frosted curls sedge and get the feeding right with the frosted curls sedge 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

Frosted Curls Sedge 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 frosted curls sedge care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Frosted Curls Sedge blooming — frequently asked questions

Why won't my frosted curls sedge flower?

Frosted Curls Sedge 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 frosted curls sedge bloom?

Give frosted curls sedge 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 frosted curls sedge normally bloom?