Monarch
A reliable selection with smooth, round roots and good standing power in the ground.
When to plant Celeriac in Glasgow
Apium graveolens var. rapaceum
A slow-growing root crop for deep, fertile, moisture-retentive soil. In the UK, sow under cover, plant out after frost risk has passed, and keep plants evenly watered. Lift roots from autumn onwards, leaving sound roots in the ground into winter where the soil stays workable.
40 cm · Full Sun · High Water
Calibrated to Glasgow · last frost ≈ 25 Apr
| Activity | January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sow indoors | No | Yes | Yes | No | No | No | No | No | No | No | No | No |
| Harvest | No | No | No | No | No | No | No | No | Yes | Yes | Yes | Yes |
Growing guide
What to do through the growing season
01
Prepare the Bed
11 Apr to 2 MayWork the soil deeply and break it down to a fine tilth around 11th April - 2nd May. Remove stones and any hard lumps, then mix in well-rotted compost. Avoid fresh manure, because it makes the roots fork.
02
Sow Seeds Indoors
23 Feb to 14 MarSow seeds thinly on the surface of moist seed compost around 23rd February - 14th March and cover with a light dusting of vermiculite. Keep them at in bright light and keep the compost evenly moist.
03
Prick Out Seedlings
16 Mar to 18 Apr Dates as each sowing reaches this stageWhen seedlings are large enough to handle, prick them out from 16th March - 18th April into individual small pots or modules. Handle them by the leaves and keep the young plants in bright light with evenly moist compost.
04
Harden Off and Plant Out
9 May to 23 MayHarden plants off for 7 to 10 days, then plant out around 9th May - 23rd May after frost risk has passed. Space plants apart with the crown at soil level. Water in thoroughly and keep the soil evenly moist.
05
Harvest Roots
14 Sept to 5 Dec Dates as each sowing reaches this stageLift roots from 14th September and keep harvesting through 5th December. Leave sound roots in the ground over winter if the soil drains well, then lift them as needed before they start to run down.
Suggested varieties
Popular varieties of Celeriac to consider
Asterix
Produces firm roots with a neat shape and steady performance in the vegetable patch.
Giant Prague
A long-established type that gives large, usable roots and is widely grown in Britain.
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