Getting it to bloom

Why won't my Cape daisy bloom? (and how to make it flower)

Also called Cape daisy, African daisy, South African daisy, Osteospermum (Osteospermum ecklonis).

More about cape daisy

About Cape daisy

Osteospermum ecklonis · also called Cape daisy, African daisy · flowering

Cape daisy is a sun-loving South African subshrub producing large, cheerful daisy flowers with distinctive spoon-shaped petals in white, pink, yellow, orange, and purple, often with a contrasting blue-purple central disc. Flowers close at night and in dull weather. It blooms abundantly in cool seasons and tolerates mild frost, making it a standout for spring and autumn containers.

Plant type: flowering

Watch for — Summer dormancy and flower cessation: Cape daisies naturally reduce or stop flowering in high summer temperatures above 28–30°C. This is not a sign of disease. Cut plants back by one-third, reduce feeding, and maintain moderate watering; flowering returns vigorously when temperatures cool in early autumn.

The reasons cape daisy isn't blooming

Almost every non-blooming cape daisy 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 cape daisy 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 cape daisy to flower

Maximise sun. Give cape daisy 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 cape daisy and get the feeding right with the cape daisy 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

Cape daisy 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 cape daisy care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Cape daisy blooming — frequently asked questions

Why won't my cape daisy flower?

Cape daisy 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 cape daisy bloom?

Give cape daisy 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 cape daisy normally bloom?