Getting it to bloom

Why won't my Smooth Arizona Cypress bloom? (and how to make it flower)

Also called Smooth Arizona Cypress, Smooth-barked Arizona Cypress, Glabra Cypress (Cupressus arizonica var. glabra).

More about smooth arizona cypress

About Smooth Arizona Cypress

Cupressus arizonica var. glabra · also called Smooth Arizona Cypress, Smooth-barked Arizona Cypress · flowering

Smooth Arizona Cypress is a fast-growing, drought-tolerant evergreen conifer from central Arizona, USA. Its smooth, exfoliating cherry-red to purple bark is uniquely ornamental year-round. With silver-blue to grey-green foliage and a tight pyramidal habit, it is an excellent drought-resistant specimen or windbreak tree for hot, dry gardens and Mediterranean climates.

Plant type: flowering

The reasons smooth arizona cypress isn't blooming

Almost every non-blooming smooth arizona cypress 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 smooth arizona cypress 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 smooth arizona cypress to flower

Maximise sun. Give smooth arizona cypress 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 smooth arizona cypress and get the feeding right with the smooth arizona cypress 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

Smooth Arizona Cypress 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 smooth arizona cypress care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Smooth Arizona Cypress blooming — frequently asked questions

Why won't my smooth arizona cypress flower?

Smooth Arizona Cypress 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 smooth arizona cypress bloom?

Give smooth arizona cypress 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 smooth arizona cypress normally bloom?