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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 10 years · 20 years of data
Frost-free season 132 days 26 May – 5 Oct
Probability that frost is over

90% = 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)
7 – 21 Apr
15 Jun
5-7 wk
26 May
20 Jul
0 wk
30 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
27 Jun
4-6 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
13 – 20 May
22 May
3-4 wk
10 Jun
12 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
3 – 10 Jun
7 Jun
4-5 wk
8 Jul
6 wk after
14 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Mar
31 Mar
8-12 wk
26 May
26 May
0 wk
16 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
15 Jun
1 wk after
30 May
5 Jun
1 wk after
Maize
Zea mays
Greenhouse
29 Apr – 6 May
12 May
3-4 wk
27 May
2 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
4 Jul
3-4 wk
3 Jun
25 Jul
1 wk after
16 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
5 Jul
0 wk
26 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
7 Jun
4-6 wk
11 Jun
5 Jul
2 wk after
11 Jun
25 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
20 Jun
5-7 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
25 May – 1 Jun
27 May
3-4 wk
22 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
25 Jun
3-4 wk
3 Jun
16 Jul
1 wk after
16 Jun
6 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
9 Jul
3-4 wk
26 May
30 Jul
0 wk
30 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
1 Jun
2-4 wk
26 May
15 Jun
0 wk
26 May
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
15 Jun
1 wk after
30 May
5 Jun
1 wk after
Spinach
Spinacia oleracea
28 Apr – 5 May
24 Jul
3-4 wk
26 May
14 Aug
0 wk
22 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
1 – 15 Apr
21 Apr
6-8 wk
27 May
2 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
13 – 27 May
29 May
2-4 wk
10 Jun
12 Jun
2 wk after
30 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
24 Jun
3-4 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
11 – 25 May
4-6 wk
22 Jun
4 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Dill
Anethum graveolens
30 May
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
20 May
8-12 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
14 Aug
0 wk
16 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
5 May
8-10 wk
3 Jun
30 Jun
1 wk after
Common thyme
Thymus vulgaris
17 – 31 Mar
10 May
8-10 wk
26 May
5 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
6 Apr
10-14 wk
3 Jun
15 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
25 May – 1 Jun
3-4 wk
22 Jun
4 wk after
Cornflower
Centaurea cyanus
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Statice
Limonium sinuatum
13 – 27 Apr
8-10 wk
22 Jun
4 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
11 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
27 Apr – 11 May
6-8 wk
22 Jun
4 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
19 Apr – 3 May
27 Apr
6-8 wk
14 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 May – 2 Jun
11 May
4-8 wk
30 Jun
5 wk after
30 Jun
5 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
16 Jun
3 wk after
Busy lizzie
Impatiens walleriana
15 Apr – 13 May
23 May
8-12 wk
8 Jul
18 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
27 Apr – 11 May
1 May
6-8 wk
22 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
4 wk after
Chinese lantern
Physalis alkekengi
25 Mar – 8 Apr
20 Apr
8-10 wk
3 Jun
15 Jun
1 wk after
Love in a mist
Nigella damascena
26 May
30 Jun
0 wk
30 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
15 – 29 Apr
25 Apr
6-8 wk
10 Jun
2 wk after
24 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
20 Apr
8-12 wk
3 Jun
15 Jun
1 wk after
Cardoon
Cynara cardunculus
30 Mar – 27 Apr
8-12 wk
22 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
18 Mar – 15 Apr
13 Apr
8-12 wk
10 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
15 – 29 Apr
27 Apr
6-8 wk
10 Jun
2 wk after
Corn poppy
Papaver rhoeas
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
10 May
8-12 wk
26 May
5 Jul
0 wk
11 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
29 Apr – 13 May
8-10 wk
8 Jul
6 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
31 May
5-8 wk
26 May
5 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
16 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
29 Apr – 13 May
6 May
4-6 wk
10 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
11 Jun
5 Jul
2 wk after
Petunia
Petunia
30 Mar – 27 Apr
7 Apr
8-12 wk
22 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
4 May
6-8 wk
3 Jun
15 Jun
1 wk after
14 Jul
7 wk after
Common zinnia
Zinnia elegans
11 – 25 May
4-6 wk
22 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
18 May – 1 Jun
3-5 wk
22 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
11 – 25 May
11 May
4-6 wk
22 Jun
4 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
15 Apr – 13 May
27 Apr
8-12 wk
8 Jul
6 wk after
Bee balm
Monarda didyma
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
4 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
15 Jun
0 wk
30 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
8 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
7 Jun
4-6 wk
26 May
5 Jul
0 wk
16 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
18 Mar – 1 Apr
22 Mar
10-12 wk
10 Jun
2 wk after
Sunflower
Helianthus annuus
25 May – 1 Jun
14 Jun
3-4 wk
22 Jun
5 Jul
4 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
3 Jun
6-8 wk
22 Jun
15 Jul
4 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
1 May
6-8 wk
10 Jun
12 Jun
2 wk after
14 Jul
7 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
27 Apr – 11 May
1 May
6-8 wk
22 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
24 May
6-8 wk
3 Jun
5 Jul
1 wk after
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
10 Apr
8-10 wk
26 May
5 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
13 Apr – 11 May
21 Apr
6-10 wk
22 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
13 – 27 Apr
10 May
8-10 wk
22 Jun
5 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after