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-1.1°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 27 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 155 days 27 Apr – 29 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)
9 – 23 Mar
19 Jun
5-7 wk
27 Apr
24 Jul
0 wk
20 Apr
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Mar
1 Jul
4-6 wk
27 Apr
29 Jul
0 wk
20 Apr
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
13 Feb – 13 Mar
8-12 wk
8 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Mar
14 Jun
5-7 wk
27 Apr
19 Jul
0 wk
15 Apr
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 Apr
13 May
3-4 wk
8 May
3 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
28 Apr – 5 May
29 May
4-5 wk
2 Jun
26 Jun
5 wk after
2 Jun
16 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 May
3-4 wk
9 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
2 Feb – 2 Mar
1 Apr
8-12 wk
27 Apr
27 May
0 wk
7 May
17 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
20 Apr
16 Jun
1 wk before
20 Apr
6 Jun
1 wk before
Maize
Zea mays
Greenhouse
30 Mar – 6 Apr
3 May
3-4 wk
27 Apr
24 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 Apr
8 Jul
3-4 wk
3 May
29 Jul
1 wk after
7 May
19 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 Apr
9 Jul
0 wk
15 Apr
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Mar
14 Jun
5-7 wk
27 Apr
19 Jul
0 wk
15 Apr
9 Jul
2 wk before
Potato
Solanum tuberosum
21 Mar – 4 Apr
30 May
4-6 wk
2 May
27 Jun
1 wk after
2 May
17 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Mar
24 Jun
5-7 wk
27 Apr
29 Jul
0 wk
20 Apr
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
18 – 25 Apr
18 May
3-4 wk
16 May
8 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 Apr
8 Jun
3-4 wk
3 May
29 Jun
1 wk after
7 May
19 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Mar
26 Jun
4-6 wk
27 Apr
24 Jul
0 wk
Lettuce
Lactuca sativa
30 Mar – 6 Apr
13 Jul
3-4 wk
27 Apr
3 Aug
0 wk
20 Apr
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Mar
26 Jun
4-6 wk
27 Apr
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
18 Mar – 1 Apr
3 Jun
2-4 wk
15 Apr
17 Jun
2 wk before
15 Apr
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
20 Apr
16 Jun
1 wk before
20 Apr
6 Jun
1 wk before
Spinach
Spinacia oleracea
30 Mar – 6 Apr
28 Jul
3-4 wk
27 Apr
18 Aug
0 wk
9 Apr
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
24 May – 7 Jun
4-6 wk
5 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
2 – 16 Mar
12 Apr
6-8 wk
27 Apr
24 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 Apr
20 May
2-4 wk
8 May
3 Jun
2 wk after
18 May
24 May
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Mar
26 Jun
4-6 wk
27 Apr
24 Jul
0 wk
Garden pea
Pisum sativum
30 Mar – 6 Apr
28 Jun
3-4 wk
27 Apr
19 Jul
0 wk
20 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
Fleece
4 – 18 Apr
26 Apr
4-6 wk
16 May
24 May
3 wk after
Lemon balm
Melissa officinalis
16 Feb – 2 Mar
24 May
8-10 wk
27 Apr
19 Jul
0 wk
18 May
9 Jul
3 wk after
Dill
Anethum graveolens
20 Apr
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
2 – 16 Mar
7 Jun
6-8 wk
27 Apr
19 Jul
0 wk
20 Apr
9 Jul
1 wk before
Spearmint
Mentha spicata
2 Feb – 2 Mar
24 May
8-12 wk
27 Apr
19 Jul
0 wk
18 May
9 Jul
3 wk after
Coriander
Coriandrum sativum
27 Apr
18 Aug
0 wk
7 May
8 Aug
1 wk after
Garden sage
Salvia officinalis
22 Feb – 8 Mar
9 May
8-10 wk
3 May
4 Jul
1 wk after
Common thyme
Thymus vulgaris
16 Feb – 2 Mar
14 May
8-10 wk
27 Apr
9 Jul
0 wk
Oregano
Origanum vulgare
2 – 16 Mar
28 May
6-8 wk
27 Apr
9 Jul
0 wk
18 May
29 Jun
3 wk after
Parsley
Petroselinum crispum
2 – 16 Mar
28 May
6-8 wk
27 Apr
9 Jul
0 wk
20 Apr
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
25 Jan – 22 Feb
30 Mar
10-14 wk
3 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
Fleece
18 – 25 Apr
3 May
3-4 wk
16 May
24 May
3 wk after
Cornflower
Centaurea cyanus
27 Apr
19 Jul
0 wk
20 Apr
9 Jul
1 wk before
Statice
Limonium sinuatum
7 – 21 Mar
28 Mar
8-10 wk
16 May
23 May
3 wk after
Sweet William
Dianthus barbatus
2 – 16 Mar
6-8 wk
27 Apr
0 wk
2 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
21 Mar – 4 Apr
11 Apr
6-8 wk
16 May
23 May
3 wk after
5 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
16 – 30 Mar
15 Apr
6-8 wk
11 May
27 May
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Mar – 20 Apr
29 Apr
4-8 wk
18 May
27 May
3 wk after
18 May
3 wk after
Foxglove
Digitalis purpurea
16 Feb – 2 Mar
8-10 wk
27 Apr
0 wk
7 May
1 wk after
Busy lizzie
Impatiens walleriana
10 Mar – 7 Apr
14 May
8-12 wk
2 Jun
9 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
21 Mar – 4 Apr
21 Apr
6-8 wk
16 May
2 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 Apr
4-6 wk
16 May
3 wk after
Chinese lantern
Physalis alkekengi
22 Feb – 8 Mar
24 Apr
8-10 wk
3 May
19 Jun
1 wk after
Love in a mist
Nigella damascena
27 Apr
4 Jul
0 wk
20 Apr
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
21 Mar – 4 Apr
1 Apr
6-8 wk
16 May
3 wk after
5 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
8 Feb – 8 Mar
24 Apr
8-12 wk
3 May
19 Jun
1 wk after
Cardoon
Cynara cardunculus
21 Feb – 21 Mar
25 Mar
8-12 wk
16 May
20 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
21 Feb – 21 Mar
19 Mar
8-12 wk
16 May
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
21 Mar – 4 Apr
2 Apr
6-8 wk
16 May
3 wk after
Corn poppy
Papaver rhoeas
27 Apr
19 Jul
0 wk
20 Apr
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
2 Feb – 2 Mar
14 May
8-12 wk
27 Apr
9 Jul
0 wk
2 May
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
24 Mar – 7 Apr
7 Apr
8-10 wk
2 Jun
2 Jun
5 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Mar
4 Jun
5-8 wk
27 Apr
9 Jul
0 wk
Stock
Matthiola incana
2 – 16 Mar
7 Jun
6-8 wk
27 Apr
19 Jul
0 wk
7 May
9 Jul
1 wk after
Wormwood
Artemisia absinthium
2 – 16 Mar
8 May
6-8 wk
27 Apr
19 Jun
0 wk
7 May
9 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
27 Mar – 10 Apr
24 Apr
4-6 wk
8 May
22 May
2 wk after
Garden pansy
Viola × wittrockiana
16 Feb – 2 Mar
24 May
8-10 wk
27 Apr
19 Jul
0 wk
2 May
9 Jul
1 wk after
Petunia
Petunia
21 Feb – 21 Mar
28 Mar
8-12 wk
16 May
23 May
3 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Mar
8 May
6-8 wk
3 May
19 Jun
1 wk after
2 Jun
9 Jun
5 wk after
Common zinnia
Zinnia elegans
4 – 18 Apr
26 Apr
4-6 wk
16 May
24 May
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
11 – 25 Apr
3 May
3-5 wk
16 May
24 May
3 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 Apr
29 Apr
4-6 wk
16 May
27 May
3 wk after
2 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
10 Mar – 7 Apr
18 Apr
8-12 wk
2 Jun
13 Jun
5 wk after
Bee balm
Monarda didyma
2 Feb – 2 Mar
24 Apr
8-12 wk
27 Apr
19 Jun
0 wk
18 May
9 Jun
3 wk after
Yarrow
Achillea millefolium
2 – 16 Mar
8 Apr
6-8 wk
27 Apr
20 May
0 wk
7 May
10 May
1 wk after
Safflower
Carthamus tinctorius
27 Apr
19 Jun
0 wk
20 Apr
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Mar
28 May
6-8 wk
27 Apr
9 Jul
0 wk
19 Mar
29 Jun
6 wk before
Bishop's flower
Ammi majus
16 – 30 Mar
11 Jun
4-6 wk
27 Apr
9 Jul
0 wk
7 May
29 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
13 – 27 Feb
19 Mar
10-12 wk
8 May
28 May
2 wk after
Sunflower
Helianthus annuus
18 – 25 Apr
7 Jun
3-4 wk
16 May
28 Jun
3 wk after
18 May
18 Jun
3 wk after
China aster
Callistephus chinensis
21 Mar – 4 Apr
27 May
6-8 wk
16 May
8 Jul
3 wk after
2 Jun
28 Jun
5 wk after
Annual phlox
Phlox drummondii
13 – 27 Mar
21 Apr
6-8 wk
8 May
2 Jun
2 wk after
2 Jun
5 wk after
Hollyhock
Alcea rosea
2 – 16 Mar
6-8 wk
27 Apr
0 wk
7 May
1 wk after
Alpine delphinium
Delphinium elatum
2 Feb – 2 Mar
24 Apr
8-12 wk
27 Apr
19 Jun
0 wk
18 May
9 Jun
3 wk after
African marigold
Tagetes erecta
21 Mar – 4 Apr
21 Apr
6-8 wk
16 May
2 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Mar
17 May
6-8 wk
3 May
28 Jun
1 wk after
2 Jun
18 Jun
5 wk after
Wood sage
Salvia nemorosa
16 Feb – 2 Mar
14 Apr
8-10 wk
27 Apr
9 Jun
0 wk
18 May
30 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
7 Mar – 4 Apr
12 Apr
6-10 wk
16 May
24 May
3 wk after
California goldenpoppy
Eschscholzia californica
27 Apr
19 Jul
0 wk
20 Apr
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
7 – 21 Mar
1 May
8-10 wk
16 May
26 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Mar
8 May
6-8 wk
27 Apr
19 Jun
0 wk
7 May
9 Jun
1 wk after