Getting it to bloom
Why won't my Autumn Pineapple Lily bloom? (and how to make it flower)
Also called Autumn Pineapple Lily, Pineapple Flower, Pineapple Lily (Eucomis autumnalis).
More about autumn pineapple lily
About Autumn Pineapple Lily
Eucomis autumnalis · also called Autumn Pineapple Lily, Pineapple Flower · flowering
Eucomis autumnalis is a bulbous perennial from southern Africa, bearing dense cylindrical racemes of greenish-white star-shaped flowers topped by a tuft of leaf-like bracts — the distinctive 'pineapple' crown — in late summer and autumn. It thrives in full sun in fertile, humus-rich, well-drained soil and needs a sheltered position to protect the large fleshy bulb from hard frost. The most important care point is to plant bulbs at least 15 cm deep and mulch generously in colder gardens to prevent frost damage to the bulb. Eucomis is not a true lily; it is not listed as toxic to cats or dogs on the ASPCA database, but as a member of Amaryllidaceae (which contains lycorine alkaloids in many genera), it should be treated as mildly toxic until ASPCA specifically lists it.
Plant type: flowering
The reasons autumn pineapple lily isn't blooming
Almost every non-blooming autumn pineapple lily 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 autumn pineapple lily 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 autumn pineapple lily to flower
- Maximise sun. Give autumn pineapple lily 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 autumn pineapple lily and get the feeding right with the autumn pineapple lily 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
Autumn Pineapple Lily 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 autumn pineapple lily care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.
Autumn Pineapple Lily blooming — frequently asked questions
Why won't my autumn pineapple lily flower?
Autumn Pineapple Lily 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 autumn pineapple lily bloom?
Give autumn pineapple lily 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 autumn pineapple lily normally bloom?
Autumn Pineapple Lily 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 autumn pineapple lily 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 autumn pineapple lily flowering?
Feeding autumn pineapple lily a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.
Keep reading
- Autumn Pineapple Lily care — the full brief (light, water, humidity, problems, pet safety)
- Autumn Pineapple Lily light needs — usually the first thing to fix for flowers
- Autumn Pineapple Lily fertilising — the right feed for buds, not just leaves
- Should I water my plant? The simple check
- Why is my plant wilting? Wet vs dry
- Underwatered plant — signs and rehydration
- Why won't my peace lily bloom?
- Why won't my jade plant bloom?
- Why won't my tomato bloom?
- All 4114 bloom guides in the Growli library