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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 1 of 10 years · 20 years of data
Frost-free season 135 days 27 May – 9 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)
8 – 22 Apr
16 Jun
5-7 wk
27 May
21 Jul
0 wk
31 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
28 Jun
4-6 wk
27 May
26 Jul
0 wk
31 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
27 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
14 – 21 May
18 May
3-4 wk
11 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
4 – 11 Jun
8 Jun
4-5 wk
9 Jul
6 wk after
15 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
4 Mar – 1 Apr
1 Apr
8-12 wk
27 May
27 May
0 wk
17 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
31 May
16 Jun
1 wk after
31 May
6 Jun
1 wk after
Maize
Zea mays
Greenhouse
30 Apr – 7 May
8 May
3-4 wk
28 May
29 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
5 Jul
3-4 wk
4 Jun
26 Jul
1 wk after
17 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
6 Jul
0 wk
27 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
27 May
6 Jul
0 wk
Potato
Solanum tuberosum
1 – 15 May
8 Jun
4-6 wk
12 Jun
6 Jul
2 wk after
12 Jun
26 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
21 Jun
5-7 wk
27 May
26 Jul
0 wk
31 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
26 May – 2 Jun
3-4 wk
23 Jun
4 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
14 Jun
3-4 wk
4 Jun
5 Jul
1 wk after
17 Jun
25 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
10 Jul
3-4 wk
27 May
31 Jul
0 wk
31 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Apr – 13 May
2 Jun
2-4 wk
27 May
16 Jun
0 wk
27 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 May
16 Jun
1 wk after
31 May
6 Jun
1 wk after
Spinach
Spinacia oleracea
29 Apr – 6 May
25 Jul
3-4 wk
27 May
15 Aug
0 wk
23 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
2 – 16 Apr
17 Apr
6-8 wk
28 May
29 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
14 – 28 May
25 May
2-4 wk
11 Jun
2 wk after
1 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
25 Jun
3-4 wk
27 May
16 Jul
0 wk
31 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
12 – 26 May
4-6 wk
23 Jun
4 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
21 May
8-10 wk
27 May
16 Jul
0 wk
1 Jul
6 Jul
5 wk after
Dill
Anethum graveolens
31 May
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
1 – 15 Apr
4 Jun
6-8 wk
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Spearmint
Mentha spicata
4 Mar – 1 Apr
21 May
8-12 wk
27 May
16 Jul
0 wk
1 Jul
6 Jul
5 wk after
Coriander
Coriandrum sativum
27 May
15 Aug
0 wk
17 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
6 May
8-10 wk
4 Jun
1 Jul
1 wk after
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
11 May
8-10 wk
27 May
6 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
1 Jul
5 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
31 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
7 Apr
10-14 wk
4 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
Fleece
26 May – 2 Jun
3-4 wk
23 Jun
4 wk after
Cornflower
Centaurea cyanus
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Statice
Limonium sinuatum
14 – 28 Apr
8-10 wk
23 Jun
4 wk after
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
12 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
9 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
20 Apr – 4 May
29 Apr
6-8 wk
15 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
22 Apr – 20 May
22 May
4-8 wk
17 Jun
19 Jun
3 wk after
17 Jun
3 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
17 Jun
3 wk after
Busy lizzie
Impatiens walleriana
16 Apr – 14 May
19 May
8-12 wk
9 Jul
14 Jul
6 wk after
Creeping zinnia
Sanvitalia procumbens
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 May
4-6 wk
23 Jun
4 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
21 Apr
8-10 wk
4 Jun
16 Jun
1 wk after
Love in a mist
Nigella damascena
27 May
1 Jul
0 wk
31 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
16 – 30 Apr
25 Apr
6-8 wk
11 Jun
2 wk after
25 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
21 Apr
8-12 wk
4 Jun
16 Jun
1 wk after
Cardoon
Cynara cardunculus
31 Mar – 28 Apr
8-12 wk
23 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
19 Mar – 16 Apr
15 Apr
8-12 wk
11 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
16 – 30 Apr
29 Apr
6-8 wk
11 Jun
2 wk after
Corn poppy
Papaver rhoeas
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
11 May
8-12 wk
27 May
6 Jul
0 wk
12 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
30 Apr – 14 May
8-10 wk
9 Jul
6 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
1 Jun
5-8 wk
27 May
6 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
4 Jun
6-8 wk
27 May
16 Jul
0 wk
17 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
5 May
6-8 wk
27 May
16 Jun
0 wk
17 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
30 Apr – 14 May
8 May
4-6 wk
11 Jun
2 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
21 May
8-10 wk
27 May
16 Jul
0 wk
12 Jun
6 Jul
2 wk after
Petunia
Petunia
31 Mar – 28 Apr
2 Apr
8-12 wk
23 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
5 May
6-8 wk
4 Jun
16 Jun
1 wk after
15 Jul
7 wk after
Common zinnia
Zinnia elegans
12 – 26 May
4-6 wk
23 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
19 May – 2 Jun
3-5 wk
23 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
12 – 26 May
13 May
4-6 wk
23 Jun
4 wk after
15 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
16 Apr – 14 May
23 Apr
8-12 wk
9 Jul
6 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
21 Apr
8-12 wk
27 May
16 Jun
0 wk
1 Jul
5 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
5 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Safflower
Carthamus tinctorius
27 May
16 Jun
0 wk
31 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
25 May
6-8 wk
27 May
6 Jul
0 wk
9 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
8 Jun
4-6 wk
27 May
6 Jul
0 wk
17 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
31 Mar – 14 Apr
10-12 wk
23 Jun
4 wk after
Sunflower
Helianthus annuus
26 May – 2 Jun
15 Jun
3-4 wk
23 Jun
6 Jul
4 wk after
1 Jul
5 wk after
China aster
Callistephus chinensis
28 Apr – 12 May
4 Jun
6-8 wk
23 Jun
16 Jul
4 wk after
15 Jul
7 wk after
Annual phlox
Phlox drummondii
16 – 30 Apr
26 Apr
6-8 wk
11 Jun
2 wk after
15 Jul
7 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
21 Apr
8-12 wk
27 May
16 Jun
0 wk
1 Jul
5 wk after
African marigold
Tagetes erecta
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
25 May
6-8 wk
4 Jun
6 Jul
1 wk after
15 Jul
7 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
11 Apr
8-10 wk
27 May
6 Jun
0 wk
1 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
14 Apr – 12 May
17 Apr
6-10 wk
23 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
14 – 28 Apr
11 May
8-10 wk
23 Jun
6 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
5 May
6-8 wk
27 May
16 Jun
0 wk
17 Jun
3 wk after