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Method
Rel. frost
Last spring frost (0°C) 30 May Frost 1 of 10 years · 20 years of data
Frost-free season 137 days 30 May – 14 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)
11 – 25 Apr
14 Jun
5-7 wk
30 May
19 Jul
0 wk
3 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
26 Jun
4-6 wk
30 May
24 Jul
0 wk
3 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
9 Jun
5-7 wk
30 May
14 Jul
0 wk
30 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
17 – 24 May
20 May
3-4 wk
14 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
7 – 14 Jun
4-5 wk
12 Jul
6 wk after
18 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 Jun
3-4 wk
17 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
7 Mar – 4 Apr
30 Mar
8-12 wk
30 May
0 wk
20 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
3 Jun
14 Jun
1 wk after
3 Jun
4 Jun
1 wk after
Maize
Zea mays
Greenhouse
3 – 10 May
10 May
3-4 wk
31 May
31 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
3 Jul
3-4 wk
7 Jun
24 Jul
1 wk after
20 Jun
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
4 Jul
0 wk
30 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
9 Jun
5-7 wk
30 May
14 Jul
0 wk
30 May
4 Jul
0 wk
Potato
Solanum tuberosum
4 – 18 May
6 Jun
4-6 wk
15 Jun
4 Jul
2 wk after
15 Jun
24 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
19 Jun
5-7 wk
30 May
24 Jul
0 wk
3 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
29 May – 5 Jun
3-4 wk
26 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 May
22 Jun
3-4 wk
7 Jun
13 Jul
1 wk after
20 Jun
3 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
21 Jun
4-6 wk
30 May
19 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
8 Jul
3-4 wk
30 May
29 Jul
0 wk
3 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
21 Jun
4-6 wk
30 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 May
31 May
2-4 wk
30 May
14 Jun
0 wk
30 May
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
3 Jun
14 Jun
1 wk after
3 Jun
4 Jun
1 wk after
Spinach
Spinacia oleracea
2 – 9 May
23 Jul
3-4 wk
30 May
13 Aug
0 wk
26 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
1 – 15 Jul
4-6 wk
12 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
5 – 19 Apr
19 Apr
6-8 wk
31 May
31 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
17 – 31 May
27 May
2-4 wk
14 Jun
2 wk after
4 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
21 Jun
4-6 wk
30 May
19 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
23 Jun
3-4 wk
30 May
14 Jul
0 wk
3 Jun
4 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
Greenhouse
3 – 17 May
20 May
4-6 wk
14 Jun
17 Jun
2 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
19 May
8-10 wk
30 May
14 Jul
0 wk
4 Jul
4 Jul
5 wk after
Dill
Anethum graveolens
3 Jun
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
4 – 18 Apr
2 Jun
6-8 wk
30 May
14 Jul
0 wk
3 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
7 Mar – 4 Apr
19 May
8-12 wk
30 May
14 Jul
0 wk
4 Jul
4 Jul
5 wk after
Coriander
Coriandrum sativum
30 May
13 Aug
0 wk
20 Jun
3 Aug
3 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
4 May
8-10 wk
7 Jun
29 Jun
1 wk after
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
9 May
8-10 wk
30 May
4 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
23 May
6-8 wk
30 May
4 Jul
0 wk
4 Jul
5 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
23 May
6-8 wk
30 May
4 Jul
0 wk
3 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
1 – 29 Mar
5 Apr
10-14 wk
7 Jun
14 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
17 – 24 May
27 May
3-4 wk
14 Jun
17 Jun
2 wk after
Cornflower
Centaurea cyanus
30 May
14 Jul
0 wk
3 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
5 – 19 Apr
23 Apr
8-10 wk
14 Jun
18 Jun
2 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
15 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
19 Apr – 3 May
7 May
6-8 wk
14 Jun
18 Jun
2 wk after
28 Jul
8 wk after
Pinnate dahlia
Dahlia × pinnata
23 Apr – 7 May
26 Apr
6-8 wk
18 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
9 May – 6 Jun
10 May
4-8 wk
4 Jul
5 wk after
4 Jul
5 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
20 Jun
3 wk after
Busy lizzie
Impatiens walleriana
19 Apr – 17 May
21 May
8-12 wk
12 Jul
16 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 May
6-8 wk
26 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
4 wk after
Chinese lantern
Physalis alkekengi
29 Mar – 12 Apr
19 Apr
8-10 wk
7 Jun
14 Jun
1 wk after
Love in a mist
Nigella damascena
30 May
29 Jun
0 wk
3 Jun
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
19 Apr – 3 May
27 Apr
6-8 wk
14 Jun
2 wk after
28 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
15 Mar – 12 Apr
19 Apr
8-12 wk
7 Jun
14 Jun
1 wk after
Cardoon
Cynara cardunculus
3 Apr – 1 May
8-12 wk
26 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
22 Mar – 19 Apr
12 Apr
8-12 wk
14 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
19 Apr – 3 May
26 Apr
6-8 wk
14 Jun
2 wk after
Corn poppy
Papaver rhoeas
30 May
14 Jul
0 wk
3 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
9 May
8-12 wk
30 May
4 Jul
0 wk
15 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
3 – 17 May
8-10 wk
12 Jul
6 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
30 May
5-8 wk
30 May
4 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
2 Jun
6-8 wk
30 May
14 Jul
0 wk
20 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
3 May
6-8 wk
30 May
14 Jun
0 wk
20 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
3 – 17 May
5 May
4-6 wk
14 Jun
2 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
19 May
8-10 wk
30 May
14 Jul
0 wk
15 Jun
4 Jul
2 wk after
Petunia
Petunia
Fleece
22 Mar – 19 Apr
23 Apr
8-12 wk
14 Jun
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Apr
3 May
6-8 wk
7 Jun
14 Jun
1 wk after
18 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
3 – 17 May
20 May
4-6 wk
14 Jun
17 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
10 – 24 May
27 May
3-5 wk
14 Jun
17 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
15 – 29 May
4-6 wk
26 Jun
4 wk after
18 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
19 Apr – 17 May
25 Apr
8-12 wk
12 Jul
6 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
19 Apr
8-12 wk
30 May
14 Jun
0 wk
4 Jul
5 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
6-8 wk
30 May
0 wk
20 Jun
3 wk after
Safflower
Carthamus tinctorius
30 May
14 Jun
0 wk
3 Jun
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
23 May
6-8 wk
30 May
4 Jul
0 wk
12 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
6 Jun
4-6 wk
30 May
4 Jul
0 wk
20 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
22 Mar – 5 Apr
28 Mar
10-12 wk
14 Jun
2 wk after
Sunflower
Helianthus annuus
29 May – 5 Jun
13 Jun
3-4 wk
26 Jun
4 Jul
4 wk after
4 Jul
5 wk after
China aster
Callistephus chinensis
1 – 15 May
2 Jun
6-8 wk
26 Jun
14 Jul
4 wk after
18 Jul
7 wk after
Annual phlox
Phlox drummondii
19 Apr – 3 May
25 Apr
6-8 wk
14 Jun
2 wk after
18 Jul
7 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
20 Jun
3 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
19 Apr
8-12 wk
30 May
14 Jun
0 wk
4 Jul
5 wk after
African marigold
Tagetes erecta
1 – 15 May
6-8 wk
26 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
23 May
6-8 wk
7 Jun
4 Jul
1 wk after
18 Jul
7 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
9 Apr
8-10 wk
30 May
4 Jun
0 wk
4 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
5 Apr – 3 May
6 May
6-10 wk
14 Jun
17 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
30 May
14 Jul
0 wk
3 Jun
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
17 Apr – 1 May
9 May
8-10 wk
26 Jun
4 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
3 May
6-8 wk
30 May
14 Jun
0 wk
20 Jun
3 wk after