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0.8°
Last 24h: Near frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 22 May Frost 1 of 10 years · 20 years of data
Frost-free season 143 days 22 May – 12 Oct
Probability that frost is over

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

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Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
3 – 17 Apr
20 Jun
5-7 wk
22 May
25 Jul
0 wk
16 May
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
2 Jul
4-6 wk
22 May
30 Jul
0 wk
16 May
20 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Apr
15 Jun
5-7 wk
22 May
20 Jul
0 wk
9 May
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
12 – 19 May
3 Jun
3-4 wk
9 Jun
24 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
28 May – 4 Jun
12 Jun
4-5 wk
2 Jul
10 Jul
6 wk after
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
14 – 21 Jun
3-4 wk
12 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Feb – 27 Mar
5 Apr
8-12 wk
22 May
31 May
0 wk
4 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
16 May
20 Jun
1 wk before
16 May
10 Jun
1 wk before
Maize
Zea mays
Greenhouse
24 Apr – 1 May
24 May
3-4 wk
22 May
14 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 Apr – 1 May
9 Jul
3-4 wk
22 May
30 Jul
0 wk
4 Jun
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 May
10 Jul
0 wk
9 May
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Apr
15 Jun
5-7 wk
22 May
20 Jul
0 wk
9 May
10 Jul
2 wk before
Potato
Solanum tuberosum
15 – 29 Apr
12 Jun
4-6 wk
27 May
10 Jul
1 wk after
27 May
30 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Apr
25 Jun
5-7 wk
22 May
30 Jul
0 wk
16 May
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
21 – 28 May
8 Jun
3-4 wk
18 Jun
29 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 Apr – 1 May
1 Jul
3-4 wk
22 May
22 Jul
0 wk
4 Jun
12 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
27 Jun
4-6 wk
22 May
25 Jul
0 wk
Lettuce
Lactuca sativa
24 Apr – 1 May
14 Jul
3-4 wk
22 May
4 Aug
0 wk
16 May
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 Apr
27 Jun
4-6 wk
22 May
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
11 – 25 Apr
6 Jun
2-4 wk
9 May
20 Jun
2 wk before
9 May
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
16 May
20 Jun
1 wk before
16 May
10 Jun
1 wk before
Spinach
Spinacia oleracea
24 Apr – 1 May
29 Jul
3-4 wk
22 May
19 Aug
0 wk
2 May
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
27 Mar – 10 Apr
3 May
6-8 wk
22 May
14 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
12 – 26 May
10 Jun
2-4 wk
9 Jun
24 Jun
3 wk after
17 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
27 Jun
4-6 wk
22 May
25 Jul
0 wk
Garden pea
Pisum sativum
24 Apr – 1 May
29 Jun
3-4 wk
22 May
20 Jul
0 wk
16 May
10 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
7 – 21 May
17 May
4-6 wk
18 Jun
4 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
25 May
8-10 wk
22 May
20 Jul
0 wk
17 Jun
10 Jul
4 wk after
Dill
Anethum graveolens
16 May
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
27 Mar – 10 Apr
8 Jun
6-8 wk
22 May
20 Jul
0 wk
16 May
10 Jul
1 wk before
Spearmint
Mentha spicata
27 Feb – 27 Mar
25 May
8-12 wk
22 May
20 Jul
0 wk
17 Jun
10 Jul
4 wk after
Coriander
Coriandrum sativum
22 May
19 Aug
0 wk
4 Jun
9 Aug
2 wk after
Garden sage
Salvia officinalis
13 – 27 Mar
10 May
8-10 wk
22 May
5 Jul
0 wk
Common thyme
Thymus vulgaris
13 – 27 Mar
15 May
8-10 wk
22 May
10 Jul
0 wk
Oregano
Origanum vulgare
27 Mar – 10 Apr
29 May
6-8 wk
22 May
10 Jul
0 wk
17 Jun
30 Jun
4 wk after
Parsley
Petroselinum crispum
27 Mar – 10 Apr
29 May
6-8 wk
22 May
10 Jul
0 wk
16 May
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
13 Feb – 13 Mar
11 Apr
10-14 wk
22 May
20 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Fleece
21 – 28 May
24 May
3-4 wk
18 Jun
4 wk after
Cornflower
Centaurea cyanus
22 May
20 Jul
0 wk
16 May
10 Jul
1 wk before
Statice
Limonium sinuatum
9 – 23 Apr
10 Apr
8-10 wk
18 Jun
4 wk after
Sweet William
Dianthus barbatus
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
27 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Apr – 7 May
24 Apr
6-8 wk
18 Jun
4 wk after
4 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
8 May
6-8 wk
13 Jun
19 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
22 Apr – 20 May
22 May
4-8 wk
17 Jun
19 Jun
4 wk after
17 Jun
4 wk after
Foxglove
Digitalis purpurea
13 – 27 Mar
8-10 wk
22 May
0 wk
4 Jun
2 wk after
Busy lizzie
Impatiens walleriana
9 Apr – 7 May
4 Jun
8-12 wk
2 Jul
30 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
4 May
6-8 wk
18 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
7 – 21 May
4-6 wk
18 Jun
4 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Mar
25 Apr
8-10 wk
22 May
20 Jun
0 wk
Love in a mist
Nigella damascena
22 May
5 Jul
0 wk
16 May
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
23 Apr – 7 May
6-8 wk
18 Jun
4 wk after
4 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
27 Feb – 27 Mar
25 Apr
8-12 wk
22 May
20 Jun
0 wk
Cardoon
Cynara cardunculus
26 Mar – 23 Apr
26 Mar
8-12 wk
18 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
26 Mar – 23 Apr
9 Apr
8-12 wk
18 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
23 Apr – 7 May
23 Apr
6-8 wk
18 Jun
4 wk after
Corn poppy
Papaver rhoeas
22 May
20 Jul
0 wk
16 May
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
27 Feb – 27 Mar
15 May
8-12 wk
22 May
10 Jul
0 wk
27 May
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
23 Apr – 7 May
8-10 wk
2 Jul
6 wk after
Sweet pea
Lathyrus odoratus
27 Mar – 17 Apr
5 Jun
5-8 wk
22 May
10 Jul
0 wk
Stock
Matthiola incana
27 Mar – 10 Apr
8 Jun
6-8 wk
22 May
20 Jul
0 wk
4 Jun
10 Jul
2 wk after
Wormwood
Artemisia absinthium
27 Mar – 10 Apr
9 May
6-8 wk
22 May
20 Jun
0 wk
4 Jun
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
7 – 21 May
4-6 wk
18 Jun
4 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Mar
25 May
8-10 wk
22 May
20 Jul
0 wk
27 May
10 Jul
1 wk after
Petunia
Petunia
26 Mar – 23 Apr
10 Apr
8-12 wk
18 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Mar – 10 Apr
9 May
6-8 wk
22 May
20 Jun
0 wk
2 Jul
6 wk after
Common zinnia
Zinnia elegans
7 – 21 May
17 May
4-6 wk
18 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
14 – 28 May
24 May
3-5 wk
18 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
22 May
4-6 wk
18 Jun
19 Jun
4 wk after
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
9 Apr – 7 May
9 May
8-12 wk
2 Jul
4 Jul
6 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
25 Apr
8-12 wk
22 May
20 Jun
0 wk
17 Jun
4 wk after
Yarrow
Achillea millefolium
27 Mar – 10 Apr
9 Apr
6-8 wk
22 May
0 wk
4 Jun
2 wk after
Safflower
Carthamus tinctorius
22 May
20 Jun
0 wk
16 May
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
27 Mar – 10 Apr
29 May
6-8 wk
22 May
10 Jul
0 wk
6 Apr
30 Jun
7 wk before
Bishop's flower
Ammi majus
10 – 24 Apr
12 Jun
4-6 wk
22 May
10 Jul
0 wk
4 Jun
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
26 Mar – 9 Apr
10-12 wk
18 Jun
4 wk after
Sunflower
Helianthus annuus
21 – 28 May
19 Jun
3-4 wk
18 Jun
10 Jul
4 wk after
17 Jun
30 Jun
4 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
8 Jun
6-8 wk
18 Jun
20 Jul
4 wk after
2 Jul
10 Jul
6 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
3 wk after
2 Jul
6 wk after
Hollyhock
Alcea rosea
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
4 Jun
2 wk after
Alpine delphinium
Delphinium elatum
27 Feb – 27 Mar
25 Apr
8-12 wk
22 May
20 Jun
0 wk
17 Jun
4 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
4 May
6-8 wk
18 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
27 Mar – 10 Apr
29 May
6-8 wk
22 May
10 Jul
0 wk
2 Jul
6 wk after
Wood sage
Salvia nemorosa
13 – 27 Mar
15 Apr
8-10 wk
22 May
10 Jun
0 wk
17 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
9 Apr – 7 May
3 May
6-10 wk
18 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
22 May
20 Jul
0 wk
16 May
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
15 May
8-10 wk
18 Jun
10 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
27 Mar – 10 Apr
9 May
6-8 wk
22 May
20 Jun
0 wk
4 Jun
10 Jun
2 wk after