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-3.3°
Slight frost tomorrow morning at 06:00. Frost temperatures between tomorrow 00:00 – 10:00. Bring in or cover sensitive plants
-2.0°
Last 24h: Slight frost recorded this morning at 07:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 10 May Normal year · 20 years of data
Frost-free season 147 days 10 May – 4 Oct
Probability that frost is over

50% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Season too short
27 Mar – 10 Apr
5-7 wk
15 May
1 wk after
1 May
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
4-6 wk
27 May
3 wk after
6 May
Vid frost
Chili pepper
Capsicum annuum
Season too short
21 Mar – 18 Apr
8-12 wk
13 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
26 Feb – 12 Mar
5-7 wk
16 Apr
2 wk before
2 May
Vid frost
Cucumber
Cucumis sativus
Season too short
16 – 23 May
3-4 wk
13 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
9 – 16 May
4-5 wk
13 Jun
5 wk after
23 May
2 wk after
Butter bean
Phaseolus lunatus
Season too short
25 May – 1 Jun
3-4 wk
22 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
15 Feb – 15 Mar
8-12 wk
10 May
Vid frost
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
23 May
2 wk after
Sweetcorn
Zea mays
Greenhouse
14 – 21 May
3-4 wk
11 Jun
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 May
3-4 wk
9 Jun
5 wk after
23 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 May
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
26 Feb – 12 Mar
5-7 wk
16 Apr
2 wk before
2 May
Vid frost
Potato
Solanum tuberosum
16 – 30 May
4-6 wk
27 Jun
6 wk after
18 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Feb – 12 Mar
5-7 wk
16 Apr
2 wk before
6 May
Vid frost
Pumpkin
Cucurbita pepo
Season too short
16 – 23 May
3-4 wk
13 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
12 – 19 May
3-4 wk
9 Jun
5 wk after
23 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
4-6 wk
27 May
3 wk after
Lettuce
Lactuca sativa
5 – 12 Apr
3-4 wk
3 May
1 wk before
6 May
Vid frost
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Mar – 5 Apr
4-6 wk
3 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Mar – 11 Apr
2-4 wk
25 Apr
1 wk before
2 May
Vid frost
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
6 May
Vid frost
Spinach
Spinacia oleracea
28 Mar – 4 Apr
3-4 wk
25 Apr
1 wk before
27 Apr
Vid frost
Sweet potato
Ipomoea batatas
28 May – 11 Jun
4-6 wk
9 Jul
7 wk after
Tomato
Solanum lycopersicum
Season too short
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
9 – 23 May
2-4 wk
6 Jun
4 wk after
23 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
4-6 wk
27 May
3 wk after
Pea
Pisum sativum
28 Mar – 4 Apr
3-4 wk
25 Apr
1 wk before
6 May
Vid frost
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Greenhouse
30 Apr – 14 May
4-6 wk
11 Jun
5 wk after
Lemon balm
Melissa officinalis
1 – 15 Mar
8-10 wk
10 May
Vid frost
4 Jun
4 wk after
Dill
Anethum graveolens
6 May
Vid frost
Chives
Allium schoenoprasum
19 Feb – 5 Mar
6-8 wk
16 Apr
2 wk before
6 May
Vid frost
Spearmint
Mentha spicata
31 Jan – 28 Feb
8-12 wk
25 Apr
1 wk before
4 Jun
4 wk after
Coriander
Coriandrum sativum
23 May
2 wk after
Sage
Salvia officinalis
Greenhouse
6 – 20 Mar
8-10 wk
15 May
1 wk after
Thyme
Thymus vulgaris
18 Mar – 1 Apr
8-10 wk
27 May
3 wk after
Oregano
Origanum vulgare
21 Mar – 4 Apr
6-8 wk
16 May
1 wk after
4 Jun
4 wk after
Parsley
Petroselinum crispum
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk before
6 May
Vid frost
Rosemary
Salvia rosmarinus
Greenhouse
6 Feb – 6 Mar
10-14 wk
15 May
1 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
23 – 30 May
3-4 wk
20 Jun
6 wk after
Cornflower
Centaurea cyanus
25 Apr
1 wk before
6 May
Vid frost
Statice
Limonium sinuatum
Season too short
28 Mar – 11 Apr
8-10 wk
6 Jun
4 wk after
Sweet William
Dianthus barbatus
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk before
18 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
11 Jun
5 wk after
Dahlia
Dahlia × pinnata
Season too short
3 – 17 Apr
6-8 wk
29 May
3 wk after
Dahlia (tubers)
Dahlia × pinnata
27 Apr – 25 May
4-8 wk
22 Jun
5 wk after
4 Jun
4 wk after
Foxglove
Digitalis purpurea
14 – 28 Feb
8-10 wk
25 Apr
1 wk before
23 May
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
21 Mar – 18 Apr
8-12 wk
13 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
9 – 23 May
4-6 wk
20 Jun
6 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
6 – 20 Mar
8-10 wk
15 May
1 wk after
Love in a mist
Nigella damascena
6 May
Vid frost
Strawflower
Xerochrysum bracteatum
Season too short
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
11 Jun
5 wk after
Tall verbena
Verbena bonariensis
Greenhouse
20 Feb – 20 Mar
8-12 wk
15 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
21 Mar – 18 Apr
8-12 wk
13 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
18 Apr – 2 May
6-8 wk
13 Jun
5 wk after
Corn poppy
Papaver rhoeas
6 May
Vid frost
Snapdragon
Antirrhinum majus
8 Feb – 8 Mar
8-12 wk
3 May
1 wk before
18 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
4 – 18 Apr
8-10 wk
13 Jun
5 wk after
Sweet pea
Lathyrus odoratus
28 Feb – 21 Mar
5-8 wk
25 Apr
1 wk before
Stock
Matthiola incana
8 – 22 Mar
6-8 wk
3 May
1 wk before
23 May
2 wk after
Wormwood
Artemisia absinthium
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk before
23 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
2 – 16 May
4-6 wk
13 Jun
5 wk after
Pansy
Viola × wittrockiana
5 – 19 Feb
8-10 wk
16 Apr
2 wk before
18 May
1 wk after
Petunia
Petunia
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
20 Mar – 3 Apr
6-8 wk
15 May
1 wk after
23 May
2 wk after
Zinnia
Zinnia elegans
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
9 – 23 May
3-5 wk
13 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
4 wk after
23 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
28 Mar – 25 Apr
8-12 wk
20 Jun
6 wk after
Bee balm
Monarda didyma
15 Feb – 15 Mar
8-12 wk
10 May
Vid frost
4 Jun
4 wk after
Yarrow
Achillea millefolium
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk before
23 May
2 wk after
Safflower
Carthamus tinctorius
25 Apr
1 wk before
6 May
Vid frost
Iceland poppy
Papaver nudicaule
19 Feb – 5 Mar
6-8 wk
16 Apr
2 wk before
2 May
Vid frost
Bishop's flower
Ammi majus
9 – 23 Apr
4-6 wk
21 May
1 wk after
23 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
21 Mar – 4 Apr
10-12 wk
13 Jun
5 wk after
Sunflower
Helianthus annuus
Season too short
9 – 16 May
3-4 wk
6 Jun
4 wk after
16 May
1 wk after
China aster
Callistephus chinensis
Season too short
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
23 May
2 wk after
Annual phlox
Phlox drummondii
Fleece
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
4 Jun
4 wk after
Hollyhock
Alcea rosea
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk before
23 May
2 wk after
Delphinium
Delphinium elatum
4 Mar – 1 Apr
8-12 wk
27 May
3 wk after
4 Jun
4 wk after
African marigold
Tagetes erecta
Season too short
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
Greenhouse
20 Mar – 3 Apr
6-8 wk
15 May
1 wk after
23 May
2 wk after
Woodland sage
Salvia nemorosa
7 – 21 Mar
8-10 wk
16 May
1 wk after
4 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
4 Apr – 2 May
6-10 wk
13 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
6 May
Vid frost
Painted tongue
Salpiglossis sinuata
Season too short
28 Mar – 11 Apr
8-10 wk
6 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk before
23 May
2 wk after
Current date Soon Date passed