Getting it to bloom

Why won't my Rocket Mixed snapdragon bloom? (and how to make it flower)

Also called Rocket Mixed snapdragon, Rocket Series snapdragon, Tall mixed snapdragon (Antirrhinum majus 'Rocket Mixed').

More about rocket mixed snapdragon

About Rocket Mixed snapdragon

Antirrhinum majus 'Rocket Mixed' · also called Rocket Mixed snapdragon, Rocket Series snapdragon · flowering

Rocket Mixed is a classic tall snapdragon series producing vigorous, heat-tolerant spikes in a wide range of colours including red, pink, orange, yellow, white, and purple. Growing to 90 cm, it is a top choice for professional cut flower growers and large cutting gardens. Cool-season blooming is most prolific; it flowers again in autumn where summers are mild.

Plant type: flowering

Watch for — Aphids and thrips: Both pests damage flower spikes and distort blooms. Check plants weekly, especially in warm weather. Apply insecticidal soap or neem oil and remove heavily infested shoots.

The reasons rocket mixed snapdragon isn't blooming

Almost every non-blooming rocket mixed snapdragon 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 rocket mixed snapdragon 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 rocket mixed snapdragon to flower

Maximise sun. Give rocket mixed snapdragon 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 rocket mixed snapdragon and get the feeding right with the rocket mixed snapdragon 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

Rocket Mixed snapdragon 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 rocket mixed snapdragon care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Rocket Mixed snapdragon blooming — frequently asked questions

Why won't my rocket mixed snapdragon flower?

Rocket Mixed snapdragon 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 rocket mixed snapdragon bloom?

Give rocket mixed snapdragon 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 rocket mixed snapdragon normally bloom?