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