Getting it to bloom

Why won't my Hameln Fountain Grass bloom? (and how to make it flower)

Also called Hameln Fountain Grass, Dwarf Fountain Grass, Chinese Fountain Grass 'Hameln' (Pennisetum alopecuroides 'Hameln').

More about hameln fountain grass

About Hameln Fountain Grass

Pennisetum alopecuroides 'Hameln' · also called Hameln Fountain Grass, Dwarf Fountain Grass · flowering

A compact, densely clumping warm-season ornamental grass producing arching green leaves and abundant bottlebrush-like, creamy-white flower spikes from midsummer through autumn. Foliage turns golden-yellow in autumn. RHS AGM awarded. Drought-tolerant once established and among the most floriferous dwarf ornamental grasses for full-sun borders.

Plant type: flowering

Watch for — Poor or late flowering: Insufficient sun is the most common cause. 'Hameln' requires 6+ hours of direct sun for reliable, early-season flowering. In the UK, site in the warmest sunny spot to ensure enough heat accumulation by midsummer.

The reasons hameln fountain grass isn't blooming

Almost every non-blooming hameln fountain grass 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 hameln fountain grass 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 hameln fountain grass to flower

Maximise sun. Give hameln fountain grass 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 hameln fountain grass and get the feeding right with the hameln fountain grass 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

Hameln Fountain Grass 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 hameln fountain grass care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Hameln Fountain Grass blooming — frequently asked questions

Why won't my hameln fountain grass flower?

Hameln Fountain Grass 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 hameln fountain grass bloom?

Give hameln fountain grass 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 hameln fountain grass normally bloom?