Getting it to bloom

Why won't my Welwitsch's Thrift bloom? (and how to make it flower)

Also called Welwitsch's Thrift, Portuguese Coastal Thrift (Armeria welwitschii).

More about welwitsch's thrift

About Welwitsch's Thrift

Armeria welwitschii · also called Welwitsch's Thrift, Portuguese Coastal Thrift · flowering

Armeria welwitschii is a coastal evergreen perennial endemic to sand dunes and coastal cliffs of central Portugal, named after the Austro-Portuguese botanist Friedrich Welwitsch. It forms low, spreading mats of narrow, grass-like foliage and produces pale pink to white drumstick flower heads in spring and summer. Because of its coastal origin, it is especially salt-tolerant and wind-resistant, but its native maritime climate means it is less cold-hardy than inland Armeria species. This species is not confirmed toxic by ASPCA; treat as mildly toxic as a precaution.

Plant type: flowering

The reasons welwitsch's thrift isn't blooming

Almost every non-blooming welwitsch's thrift 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 welwitsch's thrift 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 welwitsch's thrift to flower

Maximise sun. Give welwitsch's thrift 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 welwitsch's thrift and get the feeding right with the welwitsch's thrift 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

Welwitsch's Thrift 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 welwitsch's thrift care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Welwitsch's Thrift blooming — frequently asked questions

Why won't my welwitsch's thrift flower?

Welwitsch's Thrift 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 welwitsch's thrift bloom?

Give welwitsch's thrift 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 welwitsch's thrift normally bloom?