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-1.0°
Last 24h: Slight frost recorded tonight at 04:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 10 years · 20 years of data
Frost-free season 148 days 24 May – 19 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)
5 – 19 Apr
17 Jun
5-7 wk
24 May
22 Jul
0 wk
17 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
29 Jun
4-6 wk
24 May
27 Jul
0 wk
17 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
12 Jun
5-7 wk
24 May
17 Jul
0 wk
12 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
7 – 14 May
2 Jun
3-4 wk
4 Jun
23 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
25 May – 1 Jun
9 Jun
4-5 wk
29 Jun
7 Jul
5 wk after
29 Jun
5 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)
1 – 29 Mar
2 Apr
8-12 wk
24 May
28 May
0 wk
3 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
17 May
17 Jun
1 wk before
17 May
7 Jun
1 wk before
Maize
Zea mays
Greenhouse
26 Apr – 3 May
23 May
3-4 wk
24 May
13 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 May
6 Jul
3-4 wk
30 May
27 Jul
1 wk after
3 Jun
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
7 Jul
0 wk
12 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
12 Jun
5-7 wk
24 May
17 Jul
0 wk
12 May
7 Jul
2 wk before
Potato
Solanum tuberosum
17 Apr – 1 May
9 Jun
4-6 wk
29 May
7 Jul
1 wk after
29 May
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
22 Jun
5-7 wk
24 May
27 Jul
0 wk
17 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
15 – 22 May
7 Jun
3-4 wk
12 Jun
28 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 May
1 Jul
3-4 wk
30 May
22 Jul
1 wk after
3 Jun
12 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
24 Jun
4-6 wk
24 May
22 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
11 Jul
3-4 wk
24 May
1 Aug
0 wk
17 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
24 Jun
4-6 wk
24 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
14 – 28 Apr
3 Jun
2-4 wk
12 May
17 Jun
2 wk before
12 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
17 May
17 Jun
1 wk before
17 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
26 Apr – 3 May
26 Jul
3-4 wk
24 May
16 Aug
0 wk
6 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
20 Jun – 4 Jul
4-6 wk
1 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
29 Mar – 12 Apr
2 May
6-8 wk
24 May
13 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
7 – 21 May
9 Jun
2-4 wk
4 Jun
23 Jun
2 wk after
14 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
24 Jun
4-6 wk
24 May
22 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
26 Jun
3-4 wk
24 May
17 Jul
0 wk
17 May
7 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
1 – 15 May
16 May
4-6 wk
12 Jun
13 Jun
3 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
22 May
8-10 wk
24 May
17 Jul
0 wk
14 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
17 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
5 Jun
6-8 wk
24 May
17 Jul
0 wk
17 May
7 Jul
1 wk before
Spearmint
Mentha spicata
1 – 29 Mar
22 May
8-12 wk
24 May
17 Jul
0 wk
14 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
24 May
16 Aug
0 wk
3 Jun
6 Aug
1 wk after
Garden sage
Salvia officinalis
21 Mar – 4 Apr
7 May
8-10 wk
30 May
2 Jul
1 wk after
Common thyme
Thymus vulgaris
15 – 29 Mar
12 May
8-10 wk
24 May
7 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
26 May
6-8 wk
24 May
7 Jul
0 wk
14 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
26 May
6-8 wk
24 May
7 Jul
0 wk
17 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
21 Feb – 21 Mar
8 Apr
10-14 wk
30 May
17 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
15 – 22 May
23 May
3-4 wk
12 Jun
13 Jun
3 wk after
Cornflower
Centaurea cyanus
24 May
17 Jul
0 wk
17 May
7 Jul
1 wk before
Statice
Limonium sinuatum
3 – 17 Apr
15 Apr
8-10 wk
12 Jun
3 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
29 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Apr – 1 May
29 Apr
6-8 wk
12 Jun
3 wk after
1 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
12 – 26 Apr
1 May
6-8 wk
7 Jun
12 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
19 Apr – 17 May
15 May
4-8 wk
14 Jun
3 wk after
14 Jun
3 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
3 Jun
1 wk after
Busy lizzie
Impatiens walleriana
6 Apr – 4 May
3 Jun
8-12 wk
29 Jun
29 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
17 Apr – 1 May
9 May
6-8 wk
12 Jun
20 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 May
4-6 wk
12 Jun
3 wk after
Chinese lantern
Physalis alkekengi
21 Mar – 4 Apr
22 Apr
8-10 wk
30 May
17 Jun
1 wk after
Love in a mist
Nigella damascena
24 May
2 Jul
0 wk
17 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
17 Apr – 1 May
19 Apr
6-8 wk
12 Jun
3 wk after
1 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
7 Mar – 4 Apr
22 Apr
8-12 wk
30 May
17 Jun
1 wk after
Cardoon
Cynara cardunculus
20 Mar – 17 Apr
23 Mar
8-12 wk
12 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
20 Mar – 17 Apr
8 Apr
8-12 wk
12 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
17 Apr – 1 May
22 Apr
6-8 wk
12 Jun
3 wk after
Corn poppy
Papaver rhoeas
24 May
17 Jul
0 wk
17 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
1 – 29 Mar
12 May
8-12 wk
24 May
7 Jul
0 wk
29 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
20 Apr – 4 May
25 Apr
8-10 wk
29 Jun
5 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
2 Jun
5-8 wk
24 May
7 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
5 Jun
6-8 wk
24 May
17 Jul
0 wk
3 Jun
7 Jul
1 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
6 May
6-8 wk
24 May
17 Jun
0 wk
3 Jun
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
1 – 15 May
1 May
4-6 wk
12 Jun
3 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
22 May
8-10 wk
24 May
17 Jul
0 wk
29 May
7 Jul
1 wk after
Petunia
Petunia
20 Mar – 17 Apr
15 Apr
8-12 wk
12 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
4 – 18 Apr
6 May
6-8 wk
30 May
17 Jun
1 wk after
29 Jun
5 wk after
Common zinnia
Zinnia elegans
1 – 15 May
16 May
4-6 wk
12 Jun
13 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
8 – 22 May
23 May
3-5 wk
12 Jun
13 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 May
15 May
4-6 wk
12 Jun
12 Jun
3 wk after
29 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
6 Apr – 4 May
8 May
8-12 wk
29 Jun
3 Jul
5 wk after
Bee balm
Monarda didyma
1 – 29 Mar
22 Apr
8-12 wk
24 May
17 Jun
0 wk
14 Jun
3 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
6 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Safflower
Carthamus tinctorius
24 May
17 Jun
0 wk
17 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
26 May
6-8 wk
24 May
7 Jul
0 wk
15 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
9 Jun
4-6 wk
24 May
7 Jul
0 wk
3 Jun
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
20 Mar – 3 Apr
10-12 wk
12 Jun
3 wk after
Sunflower
Helianthus annuus
15 – 22 May
16 Jun
3-4 wk
12 Jun
7 Jul
3 wk after
14 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
17 Apr – 1 May
5 Jun
6-8 wk
12 Jun
17 Jul
3 wk after
29 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
9 May
6-8 wk
4 Jun
20 Jun
2 wk after
29 Jun
5 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
22 Apr
8-12 wk
24 May
17 Jun
0 wk
14 Jun
3 wk after
African marigold
Tagetes erecta
17 Apr – 1 May
9 May
6-8 wk
12 Jun
20 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
4 – 18 Apr
26 May
6-8 wk
30 May
7 Jul
1 wk after
29 Jun
5 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
12 Apr
8-10 wk
24 May
7 Jun
0 wk
14 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
3 Apr – 1 May
2 May
6-10 wk
12 Jun
13 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
24 May
17 Jul
0 wk
17 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
3 – 17 Apr
12 May
8-10 wk
12 Jun
7 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
6 May
6-8 wk
24 May
17 Jun
0 wk
3 Jun
7 Jun
1 wk after