Fertilising guide
How to fertilise Greig's Tulip (Tulipa greigii)— schedule & NPK
Also called Greig's tulip, Greigii tulip.
More about greig's tulip
About Greig's Tulip
Tulipa greigii · also called Greig's tulip, Greigii tulip · flowering
Greig's tulip is a species tulip from Central Asia producing wide, open, bowl-shaped flowers in vivid red, orange, or yellow, often with a contrasting dark basal blotch. Its most distinctive feature is the purple-mottled or streaked foliage. Short-stemmed and reliably perennial, it is excellent for rock gardens, containers, and the front of borders. Toxic to pets.
Growth habit: Short-stemmed, clump-forming bulbous perennial; distinctive purple-mottled or streaked broad leaves; single flower per stem, opening widely in full sun
Watch for — Fade and decline of mottled foliage colour: The characteristic leaf mottling can appear reduced in deep shade or on very fertile soils with excessive nitrogen. Ensure full sun and avoid high-nitrogen feeds to bring out the purple striping for which the species is prized.
What fertiliser greig's tulip actually wants — and why
Greig's Tulip feeds for next year, not this one — the critical window is after flowering, while the leaves are still green and recharging the bulb.
A low-nitrogen, potassium- and phosphorus-leaning bulb fertiliser (something like 5-10-10) or bonemeal at planting. High nitrogen grows floppy leaves and rots stored bulbs.
For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for greig's tulip: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.
How often to feed greig's tulip, and which months
Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For greig's tulip:
Apply a granular potassium-rich bulb fertiliser when shoots emerge in late winter and repeat after flowering while foliage remains green. The post-flowering feed is particularly important for perennialisation. Avoid high-nitrogen feeds; no heavy mulching of the crown. A light top-dressing of bone meal at autumn planting aids root establishment. The rhythm: a bulb feed at planting, a light feed as leaves emerge, and — most important — a potassium feed straight after flowering while the foliage is still green and feeding the bulb. Never cut the leaves off early.
The dormant-season rule matters more than the exact interval: skip feeding entirely when greig's tulip is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.
What strength to mix for greig's tulip
Use the bulb-feed label rate for greig's tulip; the timing (post-bloom, leaves still green) does far more for next year's display than the concentration.
Feeding always goes onto already-damp soil, never dry roots — water greig's tulip first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the greig's tulip watering schedule.
Signs you are over-feeding greig's tulip
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for greig's tulip:
- Tall, floppy, soft leaves that flop over (too much nitrogen).
- Soft or rotting bulbs lifted at the end of the season.
- Lush foliage but few or poor flowers.
Signs you are under-feeding greig's tulip
- Progressively fewer or smaller flowers year on year ("going blind").
- Small, weak bulbs and thin foliage.
- Bulbs that fail to come back at all after a few seasons.
If the symptoms point at watering, light or roots rather than nutrition, the full greig's tulip care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Bulbs are not container-flushed like houseplants; the equivalent is not over-feeding and lifting/dividing congested clumps of greig's tulip every few years so they are not competing for nutrients.
Organic vs synthetic feeds for greig's tulip
Organic options
Bonemeal worked in at planting plus a mulch of garden compost or well-rotted leaf-mould is the traditional, reliable approach for greig's tulip. UK: blood, fish & bone or Westland Bulb Food; US: Espoma Bulb-tone or bonemeal.
Synthetic / liquid feeds
A proprietary bulb fertiliser at planting and a high-potash liquid (tomato feed) after flowering — UK: Westland Bulb Food then Tomorite; US: Miracle-Gro Shake 'n Feed Bulb or a bloom booster post-flower.
Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.
Fertilising greig's tulip — frequently asked questions
What fertiliser does greig's tulip need?
A low-nitrogen, potassium- and phosphorus-leaning bulb fertiliser (something like 5-10-10) or bonemeal at planting. High nitrogen grows floppy leaves and rots stored bulbs. Greig's Tulip feeds for next year, not this one — the critical window is after flowering, while the leaves are still green and recharging the bulb.
How often should I feed greig's tulip?
Apply a granular potassium-rich bulb fertiliser when shoots emerge in late winter and repeat after flowering while foliage remains green. The post-flowering feed is particularly important for perennialisation. Avoid high-nitrogen feeds; no heavy mulching of the crown. A light top-dressing of bone meal at autumn planting aids root establishment. Apply a granular potassium-rich bulb fertiliser when shoots emerge in late winter and repeat after flowering while foliage remains green. The post-flowering feed is particularly important for perennialisation. Avoid high-nitrogen feeds; no heavy mulching of the crown. A light top-dressing of bone meal at autumn planting aids root establishment. The rhythm: a bulb feed at planting, a light feed as leaves emerge, and — most important — a potassium feed straight after flowering while the foliage is still green and feeding the bulb. Never cut the leaves off early.
What strength of feed for greig's tulip?
Use the bulb-feed label rate for greig's tulip; the timing (post-bloom, leaves still green) does far more for next year's display than the concentration.
What does over-feeding greig's tulip look like?
Tall, floppy, soft leaves that flop over (too much nitrogen). Soft or rotting bulbs lifted at the end of the season. Lush foliage but few or poor flowers. Cutting or tying off the leaves of greig's tulip as soon as the flowers fade is the great bulb mistake — the bulb recharges through those leaves for weeks afterward, and removing them early means a weak or blind display next year.
Should I flush the soil of greig's tulip?
Bulbs are not container-flushed like houseplants; the equivalent is not over-feeding and lifting/dividing congested clumps of greig's tulip every few years so they are not competing for nutrients.
Keep reading
- Greig's Tulip care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water greig's tulip — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
- How to fertilise pelargonium 'occold lagoon'
- How to fertilise geranium sylvaticum
- How to fertilise geranium sylvaticum 'mayflower'
- All 6887 fertilising guides in the Growli library