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Ranunculus Growing Guide

Ranunculus produces the most brilliant and stunning rose clustered blooms in a wide range of colours. They have long been a favourite for cut flowers and flower arrangements but look just as stunning grown in pots or flower beds.

Planting Time

Ranunculus are ground-hardy in warmer areas and can be planted in the autumn between October and November or in the spring when the danger of frost has passed.

It is easiest to grow the bulbs in pots, overwintering them in a greenhouse or cold frame and bringing them out in spring. Good ventilation is required.

How to Grow Ranunculus

Soak the tubers for an hour to hydrate them.

Plant into well drained and fertile soil in full sun. Incorporate well-rotted manure for strong plants. If planting in pots, put grit in the bottom of the pots and fill with a quality multipurpose compost and add some extra grit to ensure good drainage.

Plant 3-5 cm deep and 6-10 cm apart, ‘eyes’ up and claws facing down.
Grow in a sheltered position and protect from strong and cold winds.

How to Look After Ranunculus

Water plants well during dry periods and feeds with a high potash fertilizer once they start flowering. Deadhead regularly to encourage more flowers.

Do not cut the foliage down until the plants are fully dormant.

When to Split Ranunculus

Ranunculus should be split in autumn or spring once risk of frost has passed. Once split, plant in well drained fertile soil in full sun and incorporate some manure if possible. If planting in pots put grit in the bottom, use good quality multi purpose compost mixed with extra grit and place the pot in a sheltered sunny position away from strong and cold winds.

Have anymore flowers or veg you need a handy growing guide for? check out all our growing guides here!

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5 thoughts on “Ranunculus Growing Guide”

  1. Katie Brunt Katie Brunt says:

    Hi Chantelle, the Ranunculus are ground hardy in warmer areas and best over wintered in a greenhouse or cold frame and brought out in the spring to a sheltered position protected from strong winds. A fleece should provide a good level of protection however, and there is no reason not to expect flowers in the spring.
    Best regards,
    The Suttons Team

  2. Avatar Chantelle says:

    I’ve managed to over winter ones I bought last year that didn’t flower very Well, my fault entirely. They haven’t died down at all, have been fleeced when the temperature dropped. Will these still flower if I start feeding them once a week in spring?

  3. Katie Brunt Katie Brunt says:

    Hi Carol, it is not the right time to split Ranunculus now, this should be carried out in autumn or spring once risk of frost has passed.

    Once split, plant in well drained fertile soil in full sun and incorporate some manure if possible. If planting in pots put grit in the bottom, use good quality multi purpose compost mixed with extra grit and place the pot in a sheltered sunny position away from strong and cold winds.

    Hope this advice is helpful to you.
    Best regards,
    The Suttons Team

  4. Avatar Carol Oliver says:

    When can I split the ranunculus? Mine are coming up again after 3 years. Is it too late to do this in January?

  5. After hydrating and planting do you water the bulbs? I found the information helpful .When established then you start watering presumably

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