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Method
Rel. frost
Last spring frost (0°C) 14 May Frost 3 of 4 years · 20 years of data
Frost-free season 123 days 14 May – 14 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)
26 Mar – 9 Apr
16 Jun
5-7 wk
14 May
21 Jul
0 wk
18 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
28 Jun
4-6 wk
14 May
26 Jul
0 wk
18 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
1 – 29 Mar
28 Mar
8-12 wk
24 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
11 Jun
5-7 wk
14 May
16 Jul
0 wk
14 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
6 – 13 May
22 May
3-4 wk
3 Jun
12 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
20 May
4-5 wk
19 Jun
5 wk after
2 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
18 Mar
8-12 wk
14 May
0 wk
4 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 May
2 Jun
1 wk after
18 May
23 May
1 wk after
Maize
Zea mays
Fleece
26 Apr – 3 May
12 May
3-4 wk
24 May
2 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
26 Jun
3-4 wk
19 May
17 Jul
1 wk after
4 Jun
7 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
6 Jul
0 wk
14 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
11 Jun
5-7 wk
14 May
16 Jul
0 wk
14 May
6 Jul
0 wk
Potato
Solanum tuberosum
18 Apr – 2 May
17 May
4-6 wk
30 May
14 Jun
2 wk after
30 May
4 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
21 Jun
5-7 wk
14 May
26 Jul
0 wk
18 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
22 – 29 May
27 May
3-4 wk
19 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
24 May
3-4 wk
19 May
14 Jun
1 wk after
4 Jun
4 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
23 Jun
4-6 wk
14 May
21 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
10 Jul
3-4 wk
14 May
31 Jul
0 wk
18 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
23 Jun
4-6 wk
14 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 Apr
22 May
2-4 wk
14 May
5 Jun
0 wk
14 May
26 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 May
2 Jun
1 wk after
18 May
23 May
1 wk after
Spinach
Spinacia oleracea
16 – 23 Apr
25 Jul
3-4 wk
14 May
15 Aug
0 wk
10 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
29 Mar – 12 Apr
21 Apr
6-8 wk
24 May
2 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
29 May
2-4 wk
3 Jun
12 Jun
3 wk after
2 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
23 Jun
4-6 wk
14 May
21 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
25 Jun
3-4 wk
14 May
16 Jul
0 wk
18 May
6 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
22 Apr – 6 May
24 May
4-6 wk
3 Jun
21 Jun
3 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
21 May
8-10 wk
14 May
16 Jul
0 wk
18 Jun
6 Jul
5 wk after
Dill
Anethum graveolens
18 May
17 Jul
1 wk after
Wild chives
Allium schoenoprasum
19 Mar – 2 Apr
4 Jun
6-8 wk
14 May
16 Jul
0 wk
18 May
6 Jul
1 wk after
Spearmint
Mentha spicata
19 Feb – 19 Mar
21 May
8-12 wk
14 May
16 Jul
0 wk
18 Jun
6 Jul
5 wk after
Coriander
Coriandrum sativum
14 May
6 Aug
0 wk
4 Jun
27 Jul
3 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
6 May
8-10 wk
19 May
1 Jul
1 wk after
Common thyme
Thymus vulgaris
5 – 19 Mar
11 May
8-10 wk
14 May
6 Jul
0 wk
Oregano
Origanum vulgare
19 Mar – 2 Apr
25 May
6-8 wk
14 May
6 Jul
0 wk
18 Jun
26 Jun
5 wk after
Parsley
Petroselinum crispum
19 Mar – 2 Apr
25 May
6-8 wk
14 May
6 Jul
0 wk
18 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
22 Mar
10-14 wk
19 May
31 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
6 – 13 May
31 May
3-4 wk
3 Jun
21 Jun
3 wk after
Cornflower
Centaurea cyanus
14 May
16 Jul
0 wk
18 May
6 Jul
1 wk after
Statice
Limonium sinuatum
25 Mar – 8 Apr
23 Apr
8-10 wk
3 Jun
18 Jun
3 wk after
Sweet William
Dianthus barbatus
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
30 May
2 wk after
Snow-on-the-mountain
Euphorbia marginata
8 – 22 Apr
7 May
6-8 wk
3 Jun
18 Jun
3 wk after
27 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
1 – 15 Apr
10 May
6-8 wk
27 May
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
24 May
4-8 wk
18 Jun
21 Jun
5 wk after
18 Jun
5 wk after
Foxglove
Digitalis purpurea
5 – 19 Mar
8-10 wk
14 May
0 wk
4 Jun
3 wk after
Busy lizzie
Impatiens walleriana
27 Mar – 24 Apr
11 Jun
8-12 wk
19 Jun
6 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 Apr – 6 May
24 Apr
4-6 wk
3 Jun
3 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
12 Apr
8-10 wk
19 May
7 Jun
1 wk after
Love in a mist
Nigella damascena
14 May
1 Jul
0 wk
18 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
8 – 22 Apr
27 Apr
6-8 wk
3 Jun
8 Jun
3 wk after
27 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
12 Apr
8-12 wk
19 May
7 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
1 – 29 Mar
22 Mar
8-12 wk
24 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
11 Mar – 8 Apr
16 Apr
8-12 wk
3 Jun
11 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
8 – 22 Apr
30 Apr
6-8 wk
3 Jun
11 Jun
3 wk after
Corn poppy
Papaver rhoeas
14 May
16 Jul
0 wk
18 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
19 Feb – 19 Mar
11 May
8-12 wk
14 May
6 Jul
0 wk
30 May
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
10 – 24 Apr
3 May
8-10 wk
19 Jun
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
19 Mar – 9 Apr
1 Jun
5-8 wk
14 May
6 Jul
0 wk
Stock
Matthiola incana
19 Mar – 2 Apr
4 Jun
6-8 wk
14 May
16 Jul
0 wk
4 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
19 Mar – 2 Apr
5 May
6-8 wk
14 May
16 Jun
0 wk
4 Jun
6 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
22 Apr – 6 May
9 May
4-6 wk
3 Jun
6 Jun
3 wk after
Garden pansy
Viola × wittrockiana
5 – 19 Mar
21 May
8-10 wk
14 May
16 Jul
0 wk
30 May
6 Jul
2 wk after
Petunia
Petunia
11 Mar – 8 Apr
23 Apr
8-12 wk
3 Jun
18 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
26 Apr
6-8 wk
19 May
7 Jun
1 wk after
2 Jul
7 wk after
Common zinnia
Zinnia elegans
22 Apr – 6 May
24 May
4-6 wk
3 Jun
21 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
29 Apr – 13 May
31 May
3-5 wk
3 Jun
21 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
22 Apr – 6 May
24 May
4-6 wk
3 Jun
21 Jun
3 wk after
2 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
27 Mar – 24 Apr
16 May
8-12 wk
19 Jun
11 Jul
5 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
21 Apr
8-12 wk
14 May
16 Jun
0 wk
18 Jun
5 wk after
Yarrow
Achillea millefolium
19 Mar – 2 Apr
5 Apr
6-8 wk
14 May
17 May
0 wk
4 Jun
3 wk after
Safflower
Carthamus tinctorius
14 May
16 Jun
0 wk
18 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
19 Mar – 2 Apr
25 May
6-8 wk
14 May
6 Jul
0 wk
26 Apr
26 Jun
3 wk before
Bishop's flower
Ammi majus
2 – 16 Apr
8 Jun
4-6 wk
14 May
6 Jul
0 wk
4 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
11 – 25 Mar
23 Mar
10-12 wk
3 Jun
3 wk after
Sunflower
Helianthus annuus
6 – 13 May
30 May
3-4 wk
3 Jun
20 Jun
3 wk after
18 Jun
5 wk after
China aster
Callistephus chinensis
8 – 22 Apr
19 May
6-8 wk
3 Jun
30 Jun
3 wk after
2 Jul
7 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
17 May
6-8 wk
24 May
28 Jun
1 wk after
2 Jul
7 wk after
Hollyhock
Alcea rosea
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
4 Jun
3 wk after
Alpine delphinium
Delphinium elatum
19 Feb – 19 Mar
21 Apr
8-12 wk
14 May
16 Jun
0 wk
18 Jun
5 wk after
African marigold
Tagetes erecta
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
9 May
6-8 wk
19 May
20 Jun
1 wk after
2 Jul
7 wk after
Wood sage
Salvia nemorosa
5 – 19 Mar
11 Apr
8-10 wk
14 May
6 Jun
0 wk
18 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
25 Mar – 22 Apr
10 May
6-10 wk
3 Jun
21 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
14 May
16 Jul
0 wk
18 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
25 Mar – 8 Apr
22 Apr
8-10 wk
3 Jun
17 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
19 Mar – 2 Apr
5 May
6-8 wk
14 May
16 Jun
0 wk
4 Jun
6 Jun
3 wk after