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Rel. frost
Last spring frost (0°C) 1 May Frost 9 of 10 years · 20 years of data
Frost-free season 127 days 1 May – 5 Sep
Probability that frost is over

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