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Last 24h: Near frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 12 May Frost 3 of 4 years · 20 years of data
Frost-free season 114 days 12 May – 3 Sep
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

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