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Last 24h: Near frost recorded tonight at 03:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 10 years · 20 years of data
Frost-free season 141 days 26 May – 14 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)
7 – 21 Apr
12 Jun
5-7 wk
26 May
17 Jul
0 wk
27 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
24 Jun
4-6 wk
26 May
22 Jul
0 wk
27 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
7 Jun
5-7 wk
26 May
12 Jul
0 wk
26 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
18 – 25 May
3-4 wk
15 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
25 May – 1 Jun
4 Jun
4-5 wk
29 Jun
2 Jul
5 wk after
8 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
8 – 15 Jun
3-4 wk
6 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Mar
28 Mar
8-12 wk
26 May
0 wk
8 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 May
12 Jun
0 wk
27 May
2 Jun
0 wk
Maize
Zea mays
Fleece
9 – 16 May
3-4 wk
6 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
1 Jul
3-4 wk
1 Jun
22 Jul
1 wk after
8 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
2 Jul
0 wk
26 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
7 Jun
5-7 wk
26 May
12 Jul
0 wk
26 May
2 Jul
0 wk
Potato
Solanum tuberosum
24 Apr – 8 May
1 Jun
4-6 wk
5 Jun
29 Jun
1 wk after
5 Jun
19 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
17 Jun
5-7 wk
26 May
22 Jul
0 wk
27 May
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
18 – 25 May
20 May
3-4 wk
15 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
15 Jun
3-4 wk
1 Jun
6 Jul
1 wk after
8 Jun
26 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
19 Jun
4-6 wk
26 May
17 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
6 Jul
3-4 wk
26 May
27 Jul
0 wk
27 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
19 Jun
4-6 wk
26 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
29 May
2-4 wk
26 May
12 Jun
0 wk
26 May
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 May
12 Jun
0 wk
27 May
2 Jun
0 wk
Spinach
Spinacia oleracea
28 Apr – 5 May
21 Jul
3-4 wk
26 May
11 Aug
0 wk
23 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
20 Jun – 4 Jul
4-6 wk
1 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
11 – 25 Apr
6-8 wk
6 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
18 May – 1 Jun
2-4 wk
15 Jun
3 wk after
8 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
19 Jun
4-6 wk
26 May
17 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
21 Jun
3-4 wk
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
4 – 18 May
4-6 wk
15 Jun
3 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
17 May
8-10 wk
26 May
12 Jul
0 wk
20 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
27 May
22 Jul
0 wk
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
31 May
6-8 wk
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Spearmint
Mentha spicata
3 – 31 Mar
17 May
8-12 wk
26 May
12 Jul
0 wk
20 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
26 May
11 Aug
0 wk
8 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
2 May
8-10 wk
1 Jun
27 Jun
1 wk after
Common thyme
Thymus vulgaris
17 – 31 Mar
7 May
8-10 wk
26 May
2 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
21 May
6-8 wk
26 May
2 Jul
0 wk
20 Jun
22 Jun
4 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
21 May
6-8 wk
26 May
2 Jul
0 wk
27 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
3 Apr
10-14 wk
1 Jun
12 Jun
1 wk after

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
18 – 25 May
3-4 wk
15 Jun
3 wk after
Cornflower
Centaurea cyanus
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
28 Mar – 11 Apr
14 Apr
8-10 wk
6 Jun
9 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
5 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
11 – 25 Apr
28 Apr
6-8 wk
6 Jun
9 Jun
2 wk after
15 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
6-8 wk
10 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
13 Apr – 11 May
17 May
4-8 wk
8 Jun
14 Jun
2 wk after
8 Jun
2 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
8 Jun
2 wk after
Busy lizzie
Impatiens walleriana
6 Apr – 4 May
16 May
8-12 wk
29 Jun
11 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
20 Apr – 4 May
20 Apr
6-8 wk
15 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
3 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
17 Apr
8-10 wk
1 Jun
12 Jun
1 wk after
Love in a mist
Nigella damascena
26 May
27 Jun
0 wk
27 May
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
11 – 25 Apr
18 Apr
6-8 wk
6 Jun
2 wk after
15 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
17 Apr
8-12 wk
1 Jun
12 Jun
1 wk after
Cardoon
Cynara cardunculus
23 Mar – 20 Apr
8-12 wk
15 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
14 Mar – 11 Apr
31 Mar
8-12 wk
6 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
11 – 25 Apr
14 Apr
6-8 wk
6 Jun
2 wk after
Corn poppy
Papaver rhoeas
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Snapdragon
Antirrhinum majus
3 – 31 Mar
7 May
8-12 wk
26 May
2 Jul
0 wk
5 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
6 – 20 Apr
24 Apr
8-10 wk
15 Jun
19 Jun
3 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
28 May
5-8 wk
26 May
2 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
31 May
6-8 wk
26 May
12 Jul
0 wk
8 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
1 May
6-8 wk
26 May
12 Jun
0 wk
8 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
17 May
8-10 wk
26 May
12 Jul
0 wk
5 Jun
2 Jul
1 wk after
Petunia
Petunia
Fleece
14 Mar – 11 Apr
14 Apr
8-12 wk
6 Jun
9 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
1 May
6-8 wk
1 Jun
12 Jun
1 wk after
8 Jul
6 wk after
Common zinnia
Zinnia elegans
4 – 18 May
4-6 wk
15 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
11 – 25 May
3-5 wk
15 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 May
4-6 wk
15 Jun
3 wk after
8 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
6 Apr – 4 May
20 Apr
8-12 wk
29 Jun
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
17 Apr
8-12 wk
26 May
12 Jun
0 wk
20 Jun
4 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
1 Apr
6-8 wk
26 May
0 wk
8 Jun
2 wk after
Safflower
Carthamus tinctorius
26 May
12 Jun
0 wk
27 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
21 May
6-8 wk
26 May
2 Jul
0 wk
10 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
4 Jun
4-6 wk
26 May
2 Jul
0 wk
8 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
14 – 28 Mar
16 Mar
10-12 wk
6 Jun
2 wk after
Sunflower
Helianthus annuus
18 – 25 May
11 Jun
3-4 wk
15 Jun
2 Jul
3 wk after
20 Jun
22 Jun
4 wk after
China aster
Callistephus chinensis
20 Apr – 4 May
31 May
6-8 wk
15 Jun
12 Jul
3 wk after
8 Jul
6 wk after
Annual phlox
Phlox drummondii
11 – 25 Apr
20 Apr
6-8 wk
6 Jun
2 wk after
8 Jul
6 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
8 Jun
2 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
17 Apr
8-12 wk
26 May
12 Jun
0 wk
20 Jun
4 wk after
African marigold
Tagetes erecta
20 Apr – 4 May
20 Apr
6-8 wk
15 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
21 May
6-8 wk
1 Jun
2 Jul
1 wk after
8 Jul
6 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
7 Apr
8-10 wk
26 May
2 Jun
0 wk
20 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
6 Apr – 4 May
14 Apr
6-10 wk
15 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
26 May
12 Jul
0 wk
27 May
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
6 – 20 Apr
7 May
8-10 wk
15 Jun
2 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
1 May
6-8 wk
26 May
12 Jun
0 wk
8 Jun
2 wk after