Getting it to bloom

Why won't my Hoary Plantain bloom? (and how to make it flower)

Also called Hoary Plantain, Lamb's Tongue (Plantago media).

More about hoary plantain

About Hoary Plantain

Plantago media · also called Hoary Plantain, Lamb's Tongue · flowering

Hoary Plantain is a low-growing perennial native to calcareous grasslands across Europe and the UK, thriving in thin, well-drained chalk or limestone soils. It produces attractive, fragrant pale-lilac flower spikes from May to August and is most at home in a wildflower meadow or rock garden in full sun. The single most important care fact is that it must have alkaline, low-fertility soil — rich compost will suppress it and favour coarser grasses. It is not listed by the ASPCA and is generally considered non-toxic to pets.

Plant type: flowering

The reasons hoary plantain isn't blooming

Almost every non-blooming hoary plantain 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 hoary plantain 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 hoary plantain to flower

Maximise sun. Give hoary plantain 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 hoary plantain and get the feeding right with the hoary plantain 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

Hoary Plantain 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 hoary plantain care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Hoary Plantain blooming — frequently asked questions

Why won't my hoary plantain flower?

Hoary Plantain 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 hoary plantain bloom?

Give hoary plantain 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 hoary plantain normally bloom?