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Method
Rel. frost
Last spring frost (0°C) 17 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 111 days 17 Jun – 6 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)
29 Apr – 13 May
14 Jun
5-7 wk
17 Jun
19 Jul
0 wk
21 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 May
26 Jun
4-6 wk
17 Jun
24 Jul
0 wk
21 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
9 Apr – 7 May
8-12 wk
2 Jul
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
29 Apr – 13 May
9 Jun
5-7 wk
17 Jun
14 Jul
0 wk
17 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
2 wk after
Florence Fennel
Foeniculum vulgare
25 Jun – 2 Jul
4-5 wk
30 Jul
6 wk after
5 Aug
7 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jul
3-4 wk
4 Aug
7 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
25 Mar – 22 Apr
30 Mar
8-12 wk
17 Jun
0 wk
27 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
21 Jun
1 wk after
21 Jun
1 wk after
Maize
Zea mays
Season too short
21 – 28 May
3-4 wk
18 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 May – 4 Jun
3 Jul
3-4 wk
25 Jun
24 Jul
1 wk after
8 Jul
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 Jun
4 Jul
0 wk
17 Jun
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
29 Apr – 13 May
9 Jun
5-7 wk
17 Jun
14 Jul
0 wk
17 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
22 May – 5 Jun
1 Jun
4-6 wk
3 Jul
2 wk after
3 Jul
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
29 Apr – 13 May
19 Jun
5-7 wk
17 Jun
24 Jul
0 wk
21 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
4 – 11 Jun
3-4 wk
2 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 May – 4 Jun
15 Jun
3-4 wk
25 Jun
6 Jul
1 wk after
8 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 May
21 Jun
4-6 wk
17 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
20 – 27 May
8 Jul
3-4 wk
17 Jun
29 Jul
0 wk
21 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
6 – 20 May
21 Jun
4-6 wk
17 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 May – 3 Jun
31 May
2-4 wk
17 Jun
0 wk
17 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 Jun
1 wk after
21 Jun
1 wk after
Spinach
Spinacia oleracea
20 – 27 May
23 Jul
3-4 wk
17 Jun
13 Aug
0 wk
13 Jun
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
19 Jul – 2 Aug
4-6 wk
30 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
21 May – 4 Jun
24 May
2-4 wk
18 Jun
0 wk
8 Jul
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 May
21 Jun
4-6 wk
17 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
20 – 27 May
23 Jun
3-4 wk
17 Jun
14 Jul
0 wk
21 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
Season too short
21 May – 4 Jun
4-6 wk
2 Jul
2 wk after
Lemon balm
Melissa officinalis
8 – 22 Apr
19 May
8-10 wk
17 Jun
14 Jul
0 wk
22 Jul
5 wk after
Dill
Anethum graveolens
21 Jun
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
22 Apr – 6 May
2 Jun
6-8 wk
17 Jun
14 Jul
0 wk
21 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
25 Mar – 22 Apr
19 May
8-12 wk
17 Jun
14 Jul
0 wk
22 Jul
5 wk after
Coriander
Coriandrum sativum
17 Jun
13 Aug
0 wk
8 Jul
3 Aug
3 wk after
Garden sage
Salvia officinalis
16 – 30 Apr
4 May
8-10 wk
25 Jun
29 Jun
1 wk after
Common thyme
Thymus vulgaris
8 – 22 Apr
9 May
8-10 wk
17 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
22 Apr – 6 May
23 May
6-8 wk
17 Jun
4 Jul
0 wk
22 Jul
5 wk after
Parsley
Petroselinum crispum
22 Apr – 6 May
23 May
6-8 wk
17 Jun
4 Jul
0 wk
21 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
19 Mar – 16 Apr
5 Apr
10-14 wk
25 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
Season too short
4 – 11 Jun
3-4 wk
2 Jul
2 wk after
Cornflower
Centaurea cyanus
17 Jun
14 Jul
0 wk
21 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Greenhouse
9 – 23 Apr
5 May
8-10 wk
18 Jun
30 Jun
0 wk
Sweet William
Dianthus barbatus
22 Apr – 6 May
6-8 wk
17 Jun
0 wk
3 Jul
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
23 Apr – 7 May
19 May
6-8 wk
18 Jun
30 Jun
0 wk
28 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
30 Apr – 14 May
6-8 wk
25 Jun
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
13 May – 10 Jun
4-8 wk
8 Jul
3 wk after
8 Jul
3 wk after
Foxglove
Digitalis purpurea
8 – 22 Apr
8-10 wk
17 Jun
0 wk
8 Jul
3 wk after
Busy lizzie
Impatiens walleriana
7 May – 4 Jun
8-12 wk
30 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
7 – 21 May
6-8 wk
2 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
2 – 16 Jun
4-6 wk
14 Jul
4 wk after
Chinese lantern
Physalis alkekengi
16 – 30 Apr
19 Apr
8-10 wk
25 Jun
1 wk after
Love in a mist
Nigella damascena
17 Jun
29 Jun
0 wk
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
23 Apr – 7 May
9 May
6-8 wk
18 Jun
20 Jun
0 wk
28 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
2 – 30 Apr
19 Apr
8-12 wk
25 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
9 Apr – 7 May
8-12 wk
2 Jul
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
9 Apr – 7 May
8-12 wk
2 Jul
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
7 – 21 May
6-8 wk
2 Jul
2 wk after
Corn poppy
Papaver rhoeas
17 Jun
14 Jul
0 wk
21 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
25 Mar – 22 Apr
9 May
8-12 wk
17 Jun
4 Jul
0 wk
3 Jul
2 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 May
8-10 wk
14 Jul
4 wk after
Sweet pea
Lathyrus odoratus
22 Apr – 13 May
30 May
5-8 wk
17 Jun
4 Jul
0 wk
Stock
Matthiola incana
22 Apr – 6 May
2 Jun
6-8 wk
17 Jun
14 Jul
0 wk
8 Jul
3 wk after
Wormwood
Artemisia absinthium
22 Apr – 6 May
3 May
6-8 wk
17 Jun
0 wk
8 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
21 May – 4 Jun
4-6 wk
2 Jul
2 wk after
Garden pansy
Viola × wittrockiana
8 – 22 Apr
19 May
8-10 wk
17 Jun
14 Jul
0 wk
3 Jul
4 Jul
2 wk after
Petunia
Petunia
Greenhouse
26 Mar – 23 Apr
5 May
8-12 wk
18 Jun
30 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
30 Apr – 14 May
3 May
6-8 wk
25 Jun
1 wk after
5 Aug
7 wk after
Common zinnia
Zinnia elegans
Greenhouse
7 – 21 May
22 May
4-6 wk
18 Jun
19 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
28 May – 11 Jun
3-5 wk
2 Jul
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
21 May – 4 Jun
4-6 wk
2 Jul
2 wk after
22 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
21 Apr – 19 May
22 Apr
8-12 wk
14 Jul
4 wk after
Bee balm
Monarda didyma
25 Mar – 22 Apr
19 Apr
8-12 wk
17 Jun
0 wk
22 Jul
5 wk after
Yarrow
Achillea millefolium
22 Apr – 6 May
6-8 wk
17 Jun
0 wk
8 Jul
3 wk after
Safflower
Carthamus tinctorius
17 Jun
0 wk
21 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
22 Apr – 6 May
23 May
6-8 wk
17 Jun
4 Jul
0 wk
30 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
6 – 20 May
6 Jun
4-6 wk
17 Jun
4 Jul
0 wk
8 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
9 – 23 Apr
10-12 wk
2 Jul
2 wk after
Sunflower
Helianthus annuus
16 – 23 Jun
3-4 wk
14 Jul
4 wk after
22 Jul
5 wk after
China aster
Callistephus chinensis
19 May – 2 Jun
2 Jun
6-8 wk
14 Jul
14 Jul
4 wk after
5 Aug
7 wk after
Annual phlox
Phlox drummondii
Fleece
23 Apr – 7 May
25 Apr
6-8 wk
18 Jun
0 wk
22 Jul
5 wk after
Hollyhock
Alcea rosea
22 Apr – 6 May
6-8 wk
17 Jun
0 wk
8 Jul
3 wk after
Alpine delphinium
Delphinium elatum
25 Mar – 22 Apr
19 Apr
8-12 wk
17 Jun
0 wk
22 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
7 – 21 May
6-8 wk
2 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
30 Apr – 14 May
23 May
6-8 wk
25 Jun
4 Jul
1 wk after
5 Aug
7 wk after
Wood sage
Salvia nemorosa
8 – 22 Apr
9 Apr
8-10 wk
17 Jun
0 wk
22 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
23 Apr – 21 May
6-10 wk
2 Jul
2 wk after
California goldenpoppy
Eschscholzia californica
17 Jun
14 Jul
0 wk
21 Jun
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
5 – 19 May
9 May
8-10 wk
14 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
22 Apr – 6 May
3 May
6-8 wk
17 Jun
0 wk
8 Jul
3 wk after