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-0.7°
Slight frost tomorrow morning at 06:00. Frost temperatures between tomorrow 04:00 – 07:00. Bring in or cover sensitive plants
0.0°
Last 24h: Near frost recorded this morning at 06:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 14 May Frost 1 of 4 years · 20 years of data
Frost-free season 158 days 14 May – 19 Oct
Probability that frost is over

75% = 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)
Greenhouse
4 – 18 Apr
5-7 wk
23 May
1 wk after
10 Apr
5 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
19 Apr – 3 May
4-6 wk
31 May
3 wk after
10 May
1 wk before
Chili pepper
Capsicum annuum
Season too short
1 – 29 Apr
8-12 wk
24 Jun
6 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
2 – 16 Mar
5-7 wk
20 Apr
4 wk before
6 May
2 wk before
Cucumber
Cucumis sativus
Greenhouse
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Florence Fennel
Foeniculum vulgare
Season too short
20 – 27 May
4-5 wk
24 Jun
6 wk after
27 May
2 wk after
Butter bean
Phaseolus lunatus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
8-12 wk
14 May
Vid frost
27 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 May
2 wk after
Sweetcorn
Zea mays
Greenhouse
19 – 26 May
3-4 wk
16 Jun
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 May
3-4 wk
13 Jun
5 wk after
27 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 May
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
2 – 16 Mar
5-7 wk
20 Apr
4 wk before
6 May
2 wk before
Potato
Solanum tuberosum
20 May – 3 Jun
4-6 wk
1 Jul
8 wk after
22 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
2 – 16 Mar
5-7 wk
20 Apr
4 wk before
10 May
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
16 – 23 May
3-4 wk
13 Jun
5 wk after
27 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Apr – 3 May
4-6 wk
31 May
3 wk after
Lettuce
Lactuca sativa
9 – 16 Apr
3-4 wk
7 May
1 wk before
10 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
26 Mar – 9 Apr
4-6 wk
7 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 Apr
2-4 wk
29 Apr
3 wk before
6 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
10 May
1 wk before
Spinach
Spinacia oleracea
1 – 8 Apr
3-4 wk
29 Apr
3 wk before
1 May
3 wk before
Sweet potato
Ipomoea batatas
1 – 15 Jun
4-6 wk
13 Jul
11 wk after
Tomato
Solanum lycopersicum
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
12 – 26 May
2-4 wk
9 Jun
4 wk after
27 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Apr – 3 May
4-6 wk
31 May
3 wk after
Pea
Pisum sativum
1 – 8 Apr
3-4 wk
29 Apr
3 wk before
10 May
1 wk before
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
5 – 19 May
4-6 wk
16 Jun
5 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
8-10 wk
14 May
Vid frost
8 Jun
4 wk after
Dill
Anethum graveolens
10 May
1 wk before
Chives
Allium schoenoprasum
23 Feb – 9 Mar
6-8 wk
20 Apr
4 wk before
10 May
1 wk before
Spearmint
Mentha spicata
4 Feb – 4 Mar
8-12 wk
29 Apr
3 wk before
8 Jun
4 wk after
Coriander
Coriandrum sativum
27 May
2 wk after
Sage
Salvia officinalis
Fleece
25 Mar – 8 Apr
8-10 wk
3 Jun
3 wk after
Thyme
Thymus vulgaris
22 Mar – 5 Apr
8-10 wk
31 May
3 wk after
Oregano
Origanum vulgare
25 Mar – 8 Apr
6-8 wk
20 May
1 wk after
8 Jun
4 wk after
Parsley
Petroselinum crispum
4 – 18 Mar
6-8 wk
29 Apr
3 wk before
10 May
1 wk before
Rosemary
Salvia rosmarinus
Fleece
25 Feb – 25 Mar
10-14 wk
3 Jun
3 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
11 – 18 Jun
3-4 wk
9 Jul
8 wk after
Cornflower
Centaurea cyanus
29 Apr
3 wk before
10 May
1 wk before
Statice
Limonium sinuatum
Greenhouse
31 Mar – 14 Apr
8-10 wk
9 Jun
4 wk after
Sweet William
Dianthus barbatus
4 – 18 Mar
6-8 wk
29 Apr
3 wk before
22 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
16 Jun
5 wk after
Dahlia
Dahlia × pinnata
Greenhouse
8 – 22 Apr
6-8 wk
3 Jun
3 wk after
Dahlia (tubers)
Dahlia × pinnata
1 – 29 May
4-8 wk
26 Jun
7 wk after
8 Jun
4 wk after
Foxglove
Digitalis purpurea
18 Feb – 4 Mar
8-10 wk
29 Apr
3 wk before
27 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
16 Apr – 14 May
8-12 wk
9 Jul
8 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 May – 11 Jun
4-6 wk
9 Jul
8 wk after
Chinese lantern
Physalis alkekengi
Fleece
25 Mar – 8 Apr
8-10 wk
3 Jun
3 wk after
Love in a mist
Nigella damascena
10 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
16 Jun
5 wk after
Tall verbena
Verbena bonariensis
Fleece
11 Mar – 8 Apr
8-12 wk
3 Jun
3 wk after
Cardoon
Cynara cardunculus
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
1 – 29 Apr
8-12 wk
24 Jun
6 wk after
Globe amaranth
Gomphrena globosa
Season too short
29 Apr – 13 May
6-8 wk
24 Jun
6 wk after
Corn poppy
Papaver rhoeas
10 May
1 wk before
Snapdragon
Antirrhinum majus
12 Feb – 12 Mar
8-12 wk
7 May
1 wk before
22 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
15 – 29 Apr
8-10 wk
24 Jun
6 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Mar
5-8 wk
29 Apr
3 wk before
Stock
Matthiola incana
12 – 26 Mar
6-8 wk
7 May
1 wk before
27 May
2 wk after
Wormwood
Artemisia absinthium
4 – 18 Mar
6-8 wk
29 Apr
3 wk before
27 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
13 – 27 May
4-6 wk
24 Jun
6 wk after
Pansy
Viola × wittrockiana
9 – 23 Feb
8-10 wk
20 Apr
4 wk before
22 May
1 wk after
Petunia
Petunia
Greenhouse
17 Mar – 14 Apr
8-12 wk
9 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Fleece
8 – 22 Apr
6-8 wk
3 Jun
3 wk after
9 Jun
4 wk after
Zinnia
Zinnia elegans
Greenhouse
28 Apr – 12 May
4-6 wk
9 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
20 May – 3 Jun
3-5 wk
24 Jun
6 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
28 Apr – 12 May
4-6 wk
9 Jun
4 wk after
27 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
16 Apr – 14 May
8-12 wk
9 Jul
8 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
8-12 wk
14 May
Vid frost
8 Jun
4 wk after
Yarrow
Achillea millefolium
4 – 18 Mar
6-8 wk
29 Apr
3 wk before
27 May
2 wk after
Safflower
Carthamus tinctorius
29 Apr
3 wk before
10 May
1 wk before
Iceland poppy
Papaver nudicaule
23 Feb – 9 Mar
6-8 wk
20 Apr
4 wk before
6 May
2 wk before
Bishop's flower
Ammi majus
13 – 27 Apr
4-6 wk
25 May
2 wk after
27 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
1 – 15 Apr
10-12 wk
24 Jun
6 wk after
Sunflower
Helianthus annuus
Greenhouse
12 – 19 May
3-4 wk
9 Jun
4 wk after
13 May
China aster
Callistephus chinensis
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
27 May
2 wk after
Annual phlox
Phlox drummondii
Fleece
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
9 Jun
4 wk after
Hollyhock
Alcea rosea
4 – 18 Mar
6-8 wk
29 Apr
3 wk before
27 May
2 wk after
Delphinium
Delphinium elatum
8 Mar – 5 Apr
8-12 wk
31 May
3 wk after
8 Jun
4 wk after
African marigold
Tagetes erecta
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
8 – 22 Apr
6-8 wk
3 Jun
3 wk after
9 Jun
4 wk after
Woodland sage
Salvia nemorosa
11 – 25 Mar
8-10 wk
20 May
1 wk after
8 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
15 Apr – 13 May
6-10 wk
24 Jun
6 wk after
California goldenpoppy
Eschscholzia californica
10 May
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
31 Mar – 14 Apr
8-10 wk
9 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Mar
6-8 wk
29 Apr
3 wk before
27 May
2 wk after
Current date Soon Date passed