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-3.0°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 1 May Frost 9 of 10 years · 20 years of data
Frost-free season 149 days 1 May – 27 Sep
Probability that frost is over

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