Getting it to bloom

Why won't my Marie Simon Ceanothus bloom? (and how to make it flower)

Also called Marie Simon California Lilac, Pink Ceanothus, Pale Ceanothus (Ceanothus × pallidus 'Marie Simon').

More about marie simon ceanothus

About Marie Simon Ceanothus

Ceanothus × pallidus 'Marie Simon' · also called Marie Simon California Lilac, Pink Ceanothus · flowering

Marie Simon Ceanothus is an unusual deciduous hybrid producing soft pink flower clusters from summer into autumn — rare in a genus dominated by blues. It is more frost-hardy than most evergreen ceanothus and more amenable to pruning. Compact and floriferous, it suits cottage and mixed borders. Not individually listed by ASPCA; classified as mildly-toxic as a precaution.

Plant type: flowering

Watch for — Sparse flowering in shade: Move to a sunnier position; the summer-flowering habit requires maximum sunlight to flower well.

The reasons marie simon ceanothus isn't blooming

Almost every non-blooming marie simon ceanothus 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 marie simon ceanothus 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 marie simon ceanothus to flower

Maximise sun. Give marie simon ceanothus 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 marie simon ceanothus and get the feeding right with the marie simon ceanothus 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

Marie Simon Ceanothus 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 marie simon ceanothus care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Marie Simon Ceanothus blooming — frequently asked questions

Why won't my marie simon ceanothus flower?

Marie Simon Ceanothus 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 marie simon ceanothus bloom?

Give marie simon ceanothus 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 marie simon ceanothus normally bloom?