Getting it to bloom

Why won't my Parrotia persica bloom? (and how to make it flower)

Also called Persian Ironwood, Persian Witch Hazel (Parrotia persica).

More about parrotia persica

About Parrotia persica

Parrotia persica · also called Persian Ironwood, Persian Witch Hazel · flowering

Persian ironwood is a slow-growing deciduous tree prized for exfoliating bark and fiery autumn colour. Tiny red, petal-less flowers open on bare branches in late winter. It thrives in full sun, tolerates a range of soils once established, and is exceptionally hardy and pest-resistant, making a superb specimen for medium-sized gardens.

Plant type: flowering

Watch for — Frost damage to early flowers: The late-winter blooms are inconspicuous and a hard frost may brown them, though this rarely harms the tree itself.

The reasons parrotia persica isn't blooming

Almost every non-blooming parrotia persica 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 parrotia persica 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 parrotia persica to flower

Maximise sun. Give parrotia persica 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 parrotia persica and get the feeding right with the parrotia persica 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

Parrotia persica 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 parrotia persica care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Parrotia persica blooming — frequently asked questions

Why won't my parrotia persica flower?

Parrotia persica 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 parrotia persica bloom?

Give parrotia persica 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 parrotia persica normally bloom?