Growli

Getting it to bloom

Why won't my Pyrenean Heron's Bill bloom? (and how to make it flower)

Also called Pyrenean Heron's Bill, Manescau Stork's Bill, Heron's Bill (Erodium manescavii).

More about pyrenean heron's bill

About Pyrenean Heron's Bill

Erodium manescavii · also called Pyrenean Heron's Bill, Manescau Stork's Bill · flowering

Erodium manescavii is a robust, clump-forming perennial native to the Pyrenees of France and Spain, producing long-stemmed, showy clusters of five-petalled magenta-purple flowers with darker blotching on the upper petals from early summer through early autumn. It is larger than most Erodium species, forming a dome of finely divided, pinnate, softly hairy leaves to 45 cm, and it earned the RHS Award of Garden Merit for reliable garden performance. Sharp drainage is the single most critical requirement — it resents wet winter soil above all else, and waterlogged crowns are the primary cause of plant death. Erodium species are absent from the ASPCA Toxic Plants database, so toxicity status cannot be confirmed; as a precaution, they are classified as mildly-toxic pending a definitive assessment.

Plant type: flowering

Watch for — Self-seeding: Erodium manescavii can seed prolifically around the garden; deadhead spent flowers before the coiled seed awns mature and disperse to prevent unwanted seedlings in nearby borders.

The reasons pyrenean heron's bill isn't blooming

Almost every non-blooming pyrenean heron's bill 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 pyrenean heron's bill 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 pyrenean heron's bill to flower

  1. Maximise sun. Give pyrenean heron's bill 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 pyrenean heron's bill and get the feeding right with the pyrenean heron's bill 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

Pyrenean Heron's Bill 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 pyrenean heron's bill care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Pyrenean Heron's Bill blooming — frequently asked questions

Why won't my pyrenean heron's bill flower?

Pyrenean Heron's Bill 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 pyrenean heron's bill bloom?

Give pyrenean heron's bill 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 pyrenean heron's bill normally bloom?

Pyrenean Heron's Bill 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 pyrenean heron's bill 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 pyrenean heron's bill flowering?

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

Keep reading