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-2.3°
Last 24h: Slight frost recorded tonight at 04:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 27 May Frost 1 of 10 years · 20 years of data
Frost-free season 143 days 27 May – 17 Oct
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

Custom date

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
14 – 28 Apr
5-7 wk
2 Jun
1 wk after
28 Apr
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
4-6 wk
13 Jun
2 wk after
23 May
1 wk before
Chili pepper
Capsicum annuum
Season too short
8 Apr – 6 May
8-12 wk
1 Jul
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Mar
5-7 wk
3 May
4 wk before
19 May
2 wk before
Cucumber
Cucumis sativus
Season too short
3 – 10 Jun
3-4 wk
1 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
27 May – 3 Jun
4-5 wk
1 Jul
5 wk after
6 Jun
1 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
5 wk after
Onion
Allium cepa (Cepa-gruppen)
4 Mar – 1 Apr
8-12 wk
27 May
Vid frost
9 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 Jun
1 wk after
Sweetcorn
Zea mays
Greenhouse
27 May – 3 Jun
3-4 wk
24 Jun
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
29 May – 5 Jun
3-4 wk
26 Jun
4 wk after
9 Jun
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
19 May
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Mar
5-7 wk
3 May
4 wk before
19 May
2 wk before
Potato
Solanum tuberosum
2 – 16 Jun
4-6 wk
14 Jul
7 wk after
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Mar
5-7 wk
3 May
4 wk before
23 May
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
3 – 10 Jun
3-4 wk
1 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 May – 5 Jun
3-4 wk
26 Jun
4 wk after
9 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
4-6 wk
13 Jun
2 wk after
Lettuce
Lactuca sativa
22 – 29 Apr
3-4 wk
20 May
1 wk before
23 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
8 – 22 Apr
4-6 wk
20 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
14 – 28 Apr
2-4 wk
12 May
2 wk before
19 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
23 May
1 wk before
Spinach
Spinacia oleracea
14 – 21 Apr
3-4 wk
12 May
2 wk before
14 May
3 wk before
Sweet potato
Ipomoea batatas
14 – 28 Jun
4-6 wk
26 Jul
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
21 May – 4 Jun
2-4 wk
18 Jun
3 wk after
6 Jun
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
4-6 wk
13 Jun
2 wk after
Pea
Pisum sativum
14 – 21 Apr
3-4 wk
12 May
2 wk before
23 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
13 – 27 May
4-6 wk
24 Jun
4 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
8-10 wk
27 May
Vid frost
21 Jun
3 wk after
Dill
Anethum graveolens
23 May
1 wk before
Chives
Allium schoenoprasum
8 – 22 Mar
6-8 wk
3 May
4 wk before
23 May
1 wk before
Spearmint
Mentha spicata
17 Feb – 17 Mar
8-12 wk
12 May
2 wk before
21 Jun
3 wk after
Coriander
Coriandrum sativum
9 Jun
1 wk after
Sage
Salvia officinalis
Fleece
1 – 15 Apr
8-10 wk
10 Jun
2 wk after
Thyme
Thymus vulgaris
4 – 18 Apr
8-10 wk
13 Jun
2 wk after
Oregano
Origanum vulgare
7 – 21 Apr
6-8 wk
2 Jun
1 wk after
21 Jun
3 wk after
Parsley
Petroselinum crispum
17 – 31 Mar
6-8 wk
12 May
2 wk before
23 May
1 wk before
Rosemary
Salvia rosmarinus
Greenhouse
24 Feb – 24 Mar
10-14 wk
2 Jun
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
15 – 22 Jun
3-4 wk
13 Jul
7 wk after
Cornflower
Centaurea cyanus
12 May
2 wk before
23 May
1 wk before
Statice
Limonium sinuatum
Greenhouse
9 – 23 Apr
8-10 wk
18 Jun
3 wk after
Sweet William
Dianthus barbatus
17 – 31 Mar
6-8 wk
12 May
2 wk before
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
24 Jun
4 wk after
Dahlia
Dahlia × pinnata
Greenhouse
15 – 29 Apr
6-8 wk
10 Jun
2 wk after
Dahlia (tubers)
Dahlia × pinnata
14 May – 11 Jun
4-8 wk
9 Jul
6 wk after
21 Jun
3 wk after
Foxglove
Digitalis purpurea
3 – 17 Mar
8-10 wk
12 May
2 wk before
9 Jun
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
20 Apr – 18 May
8-12 wk
13 Jul
7 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 Jun
4-6 wk
13 Jul
7 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
24 Mar – 7 Apr
8-10 wk
2 Jun
1 wk after
Love in a mist
Nigella damascena
23 May
1 wk before
Strawflower
Xerochrysum bracteatum
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
24 Jun
4 wk after
Tall verbena
Verbena bonariensis
Greenhouse
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Cardoon
Cynara cardunculus
Season too short
26 Mar – 23 Apr
8-12 wk
18 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
8 Apr – 6 May
8-12 wk
1 Jul
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
6 – 20 May
6-8 wk
1 Jul
5 wk after
Corn poppy
Papaver rhoeas
23 May
1 wk before
Snapdragon
Antirrhinum majus
25 Feb – 25 Mar
8-12 wk
20 May
1 wk before
4 Jun
1 wk after
Flossflower
Ageratum houstonianum
Season too short
22 Apr – 6 May
8-10 wk
1 Jul
5 wk after
Sweet pea
Lathyrus odoratus
17 Mar – 7 Apr
5-8 wk
12 May
2 wk before
Stock
Matthiola incana
25 Mar – 8 Apr
6-8 wk
20 May
1 wk before
9 Jun
1 wk after
Wormwood
Artemisia absinthium
17 – 31 Mar
6-8 wk
12 May
2 wk before
9 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
20 May – 3 Jun
4-6 wk
1 Jul
5 wk after
Pansy
Viola × wittrockiana
22 Feb – 8 Mar
8-10 wk
3 May
4 wk before
4 Jun
1 wk after
Petunia
Petunia
Season too short
26 Mar – 23 Apr
8-12 wk
18 Jun
3 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
7 – 21 Apr
6-8 wk
2 Jun
1 wk after
6 Jun
1 wk after
Zinnia
Zinnia elegans
Greenhouse
7 – 21 May
4-6 wk
18 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Season too short
27 May – 10 Jun
3-5 wk
1 Jul
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
7 – 21 May
4-6 wk
18 Jun
3 wk after
6 Jun
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
20 Apr – 18 May
8-12 wk
13 Jul
7 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
8-12 wk
27 May
Vid frost
21 Jun
3 wk after
Yarrow
Achillea millefolium
17 – 31 Mar
6-8 wk
12 May
2 wk before
9 Jun
1 wk after
Safflower
Carthamus tinctorius
12 May
2 wk before
23 May
1 wk before
Iceland poppy
Papaver nudicaule
8 – 22 Mar
6-8 wk
3 May
4 wk before
19 May
2 wk before
Bishop's flower
Ammi majus
26 Apr – 10 May
4-6 wk
7 Jun
1 wk after
9 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
8 – 22 Apr
10-12 wk
1 Jul
5 wk after
Sunflower
Helianthus annuus
Season too short
21 – 28 May
3-4 wk
18 Jun
3 wk after
26 May
China aster
Callistephus chinensis
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
6 Jun
1 wk after
Annual phlox
Phlox drummondii
Fleece
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
17 Jun
3 wk after
Hollyhock
Alcea rosea
17 – 31 Mar
6-8 wk
12 May
2 wk before
9 Jun
1 wk after
Delphinium
Delphinium elatum
21 Mar – 18 Apr
8-12 wk
13 Jun
2 wk after
21 Jun
3 wk after
African marigold
Tagetes erecta
Greenhouse
23 Apr – 7 May
6-8 wk
18 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 May
6-8 wk
26 Jun
4 wk after
7 Jul
5 wk after
Woodland sage
Salvia nemorosa
24 Mar – 7 Apr
8-10 wk
2 Jun
1 wk after
21 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
22 Apr – 20 May
6-10 wk
1 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
23 May
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
9 – 23 Apr
8-10 wk
18 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
17 – 31 Mar
6-8 wk
12 May
2 wk before
9 Jun
1 wk after
Current date Soon Date passed