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Method
Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 10 years · 20 years of data
Frost-free season 138 days 29 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)
10 – 24 Apr
12 Jun
5-7 wk
29 May
17 Jul
0 wk
30 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
24 Jun
4-6 wk
29 May
22 Jul
0 wk
30 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
12 Mar
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
7 Jun
5-7 wk
29 May
12 Jul
0 wk
29 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
7 – 14 May
26 May
3-4 wk
4 Jun
16 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
26 May – 2 Jun
4 Jun
4-5 wk
30 Jun
2 Jul
5 wk after
11 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
9 – 16 Jun
3-4 wk
7 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
6 Mar – 3 Apr
28 Mar
8-12 wk
29 May
0 wk
11 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Maize
Zea mays
Fleece
7 – 14 May
3-4 wk
4 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
1 Jul
3-4 wk
31 May
22 Jul
0 wk
11 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
2 Jul
0 wk
29 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
7 Jun
5-7 wk
29 May
12 Jul
0 wk
29 May
2 Jul
0 wk
Potato
Solanum tuberosum
27 Apr – 11 May
4 Jun
4-6 wk
8 Jun
2 Jul
1 wk after
8 Jun
22 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
17 Jun
5-7 wk
29 May
22 Jul
0 wk
30 May
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
14 – 21 May
31 May
3-4 wk
11 Jun
21 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
16 Jun
3-4 wk
31 May
7 Jul
0 wk
11 Jun
27 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
6 Jul
3-4 wk
29 May
27 Jul
0 wk
30 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
29 May
2-4 wk
29 May
12 Jun
0 wk
29 May
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Spinach
Spinacia oleracea
1 – 8 May
21 Jul
3-4 wk
29 May
11 Aug
0 wk
26 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
9 – 23 Apr
6-8 wk
4 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
7 – 21 May
2 Jun
2-4 wk
4 Jun
16 Jun
1 wk after
23 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
19 Jun
4-6 wk
29 May
17 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
21 Jun
3-4 wk
29 May
12 Jul
0 wk
30 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
30 Apr – 14 May
9 May
4-6 wk
11 Jun
2 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
17 May
8-10 wk
29 May
12 Jul
0 wk
23 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
30 May
22 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
31 May
6-8 wk
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
17 May
8-12 wk
29 May
12 Jul
0 wk
23 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
29 May
11 Aug
0 wk
11 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
2 May
8-10 wk
31 May
27 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
7 May
8-10 wk
29 May
2 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
30 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
3 Apr
10-14 wk
31 May
12 Jun
0 wk

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
14 – 21 May
16 May
3-4 wk
11 Jun
2 wk after
Cornflower
Centaurea cyanus
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
26 Mar – 9 Apr
19 Apr
8-10 wk
4 Jun
14 Jun
1 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
9 – 23 Apr
3 May
6-8 wk
4 Jun
14 Jun
1 wk after
18 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
27 Apr
6-8 wk
9 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Apr – 26 May
11 May
4-8 wk
23 Jun
4 wk after
23 Jun
4 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
11 Jun
2 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
27 May
8-12 wk
30 Jun
22 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
27 Apr
6-8 wk
11 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
2 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
17 Apr
8-10 wk
31 May
12 Jun
0 wk
Love in a mist
Nigella damascena
29 May
27 Jun
0 wk
30 May
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
9 – 23 Apr
23 Apr
6-8 wk
4 Jun
4 Jun
1 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
17 Apr
8-12 wk
31 May
12 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
12 Mar – 9 Apr
18 Mar
8-12 wk
4 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
12 Mar – 9 Apr
13 Apr
8-12 wk
4 Jun
8 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
9 – 23 Apr
27 Apr
6-8 wk
4 Jun
8 Jun
1 wk after
Corn poppy
Papaver rhoeas
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
7 May
8-12 wk
29 May
2 Jul
0 wk
8 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
21 Apr – 5 May
8-10 wk
30 Jun
5 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
28 May
5-8 wk
29 May
2 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
31 May
6-8 wk
29 May
12 Jul
0 wk
11 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
1 May
6-8 wk
29 May
12 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
23 Apr – 7 May
6 May
4-6 wk
4 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
17 May
8-10 wk
29 May
12 Jul
0 wk
8 Jun
2 Jul
1 wk after
Petunia
Petunia
Fleece
12 Mar – 9 Apr
19 Apr
8-12 wk
4 Jun
14 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
1 May
6-8 wk
31 May
12 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
30 Apr – 14 May
9 May
4-6 wk
11 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
7 – 21 May
16 May
3-5 wk
11 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
30 Apr – 14 May
11 May
4-6 wk
11 Jun
2 wk after
11 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
7 Apr – 5 May
1 May
8-12 wk
30 Jun
5 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
17 Apr
8-12 wk
29 May
12 Jun
0 wk
23 Jun
4 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Safflower
Carthamus tinctorius
29 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
21 May
6-8 wk
29 May
2 Jul
0 wk
13 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
4 Jun
4-6 wk
29 May
2 Jul
0 wk
11 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
26 Mar
10-12 wk
4 Jun
4 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
11 Jun
3-4 wk
11 Jun
2 Jul
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
31 May
6-8 wk
11 Jun
12 Jul
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
27 Apr
6-8 wk
4 Jun
8 Jun
1 wk after
11 Jul
6 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
17 Apr
8-12 wk
29 May
12 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
16 – 30 Apr
27 Apr
6-8 wk
11 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
21 May
6-8 wk
31 May
2 Jul
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
7 Apr
8-10 wk
29 May
2 Jun
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
2 – 30 Apr
25 Apr
6-10 wk
11 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
29 May
12 Jul
0 wk
30 May
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
2 – 16 Apr
7 May
8-10 wk
11 Jun
2 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
1 May
6-8 wk
29 May
12 Jun
0 wk
11 Jun
2 wk after