Getting it to bloom

Why won't my Wild Crabapple Bonsai bloom? (and how to make it flower)

Also called European Crabapple Bonsai, Wild Crabapple (Malus sylvestris).

More about wild crabapple bonsai

About Wild Crabapple Bonsai

Malus sylvestris · also called European Crabapple Bonsai, Wild Crabapple · flowering

European wild crabapple is a hardy deciduous tree grown as bonsai for its white-pink spring blossom and small tart autumn apples. Give it full sun, a moisture-retentive but draining mix, and plenty of water during the growing season, kept outdoors with winter cold. Prune after flowering and thin fruit in heavy years to maintain vigour.

Plant type: flowering

Watch for — Biennial cropping: A heavy fruit year can leave the tree too drained to flower the next. Thin the fruit on small bonsai to even out cropping and preserve vigour.

The reasons wild crabapple bonsai isn't blooming

Almost every non-blooming wild crabapple bonsai 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 wild crabapple bonsai 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 wild crabapple bonsai to flower

Maximise sun. Give wild crabapple bonsai 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 wild crabapple bonsai and get the feeding right with the wild crabapple bonsai 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

Wild Crabapple Bonsai 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 wild crabapple bonsai care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Wild Crabapple Bonsai blooming — frequently asked questions

Why won't my wild crabapple bonsai flower?

Wild Crabapple Bonsai 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 wild crabapple bonsai bloom?

Give wild crabapple bonsai 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 wild crabapple bonsai normally bloom?