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Getting it to bloom

Why won't my Aster 'Fellowship' bloom? (and how to make it flower)

Also called Fellowship aster, Michaelmas daisy, New York aster (Symphyotrichum novi-belgii 'Fellowship').

More about aster 'fellowship'

About Aster 'Fellowship'

Symphyotrichum novi-belgii 'Fellowship' · also called Fellowship aster, Michaelmas daisy · flowering

A classic New York aster (Michaelmas daisy) producing large, clear pink semi-double to double flowers on branching stems in early to mid autumn. A long-established cottage garden variety valued for its generous bloom. Not ASPCA-listed; treat as mildly toxic to pets as a precaution. Divide every two years to maintain vigour.

Plant type: flowering

Watch for — Aphids: Common in spring on new growth; address early before colonies establish to prevent distorted buds.

The reasons aster 'fellowship' isn't blooming

Almost every non-blooming aster 'fellowship' traces back to one of these, roughly in order of how common they are:

  1. Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
  2. Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
  3. The plant has not been deadheaded, so it stops flowering once it sets seed.
  4. Irregular watering — drought or waterlogging at the budding stage makes buds abort.
  5. It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding aster 'fellowship' 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 aster 'fellowship' to flower

  1. Maximise sun. Give aster 'fellowship' the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
  2. Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
  3. Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
  4. 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 aster 'fellowship' and get the feeding right with the aster 'fellowship' 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

Aster 'Fellowship' 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 aster 'fellowship' care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Aster 'Fellowship' blooming — frequently asked questions

Why won't my aster 'fellowship' flower?

Aster 'Fellowship' 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 aster 'fellowship' bloom?

Give aster 'fellowship' 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 aster 'fellowship' normally bloom?

Aster 'Fellowship' flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

What should I do with aster 'fellowship' after it flowers?

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.

What is the single biggest mistake stopping aster 'fellowship' flowering?

Feeding aster 'fellowship' a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

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