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Getting it to bloom

Why won't my Flanagan's Sage bloom? (and how to make it flower)

Also called Flanagan's sage (Salvia flanaganii).

More about flanagan's sage

About Flanagan's Sage

Salvia flanaganii · also called Flanagan's sage · flowering

Salvia flanaganii is a little-known South African sage from the Eastern Cape and KwaZulu-Natal grasslands, where it grows as a low, spreading perennial with aromatic grey-green foliage and spikes of pale blue to lilac flowers in summer. It is adapted to hot, dry summers with good rainfall in winter-dormant periods, and tolerates moderate frosts in a well-drained, sunny position. Plant in full sun with gritty, sharply draining soil to replicate its grassland habitat. Salvia is listed by the ASPCA as non-toxic to cats and dogs.

Plant type: flowering

The reasons flanagan's sage isn't blooming

Almost every non-blooming flanagan's sage 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 flanagan's sage 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 flanagan's sage to flower

  1. Maximise sun. Give flanagan's sage 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 flanagan's sage and get the feeding right with the flanagan's sage 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

Flanagan's Sage 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 flanagan's sage care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Flanagan's Sage blooming — frequently asked questions

Why won't my flanagan's sage flower?

Flanagan's Sage 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 flanagan's sage bloom?

Give flanagan's sage 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 flanagan's sage normally bloom?

Flanagan's Sage 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 flanagan's sage 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 flanagan's sage flowering?

Feeding flanagan's sage 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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