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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 134 days 27 May – 8 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
10 Mar – 7 Apr
8-12 wk
2 Jun
1 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
5 – 12 May
10 May
3-4 wk
2 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
24 – 31 May
8 Jun
4-5 wk
28 Jun
6 Jul
5 wk after
15 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 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
29 Apr – 6 May
30 Apr
3-4 wk
27 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 May
5 Jul
3-4 wk
29 May
26 Jul
0 wk
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
12 – 19 May
15 May
3-4 wk
9 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
1 – 8 May
16 Jun
3-4 wk
29 May
7 Jul
0 wk
17 Jun
27 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
1 – 15 Apr
9 Apr
6-8 wk
27 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
5 – 19 May
17 May
2-4 wk
2 Jun
1 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
28 Apr – 12 May
4-6 wk
9 Jun
2 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
20 Mar – 3 Apr
6 May
8-10 wk
29 May
1 Jul
0 wk
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
20 Feb – 20 Mar
7 Apr
10-14 wk
29 May
16 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
12 – 19 May
3-4 wk
9 Jun
2 wk after
Cornflower
Centaurea cyanus
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Statice
Limonium sinuatum
31 Mar – 14 Apr
2 Apr
8-10 wk
9 Jun
2 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
14 – 28 Apr
16 Apr
6-8 wk
9 Jun
2 wk after
9 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
12 – 26 Apr
20 Apr
6-8 wk
7 Jun
2 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
5 Apr – 3 May
11 May
8-12 wk
28 Jun
6 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
26 Apr
6-8 wk
9 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
2 wk after
Chinese lantern
Physalis alkekengi
20 Mar – 3 Apr
21 Apr
8-10 wk
29 May
16 Jun
0 wk
Love in a mist
Nigella damascena
27 May
1 Jul
0 wk
31 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
7 – 21 Apr
23 Apr
6-8 wk
2 Jun
4 Jun
1 wk after
25 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
6 Mar – 3 Apr
21 Apr
8-12 wk
29 May
16 Jun
0 wk
Cardoon
Cynara cardunculus
17 Mar – 14 Apr
22 Mar
8-12 wk
9 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
10 Mar – 7 Apr
6 Apr
8-12 wk
2 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
7 – 21 Apr
20 Apr
6-8 wk
2 Jun
1 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
19 Apr – 3 May
8-10 wk
28 Jun
5 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
21 Apr – 5 May
29 Apr
4-6 wk
2 Jun
1 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
17 Mar – 14 Apr
2 Apr
8-12 wk
9 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
3 – 17 Apr
5 May
6-8 wk
29 May
16 Jun
0 wk
15 Jul
7 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
4-6 wk
9 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
5 – 19 May
3-5 wk
9 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
4 May
4-6 wk
9 Jun
2 wk after
15 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
5 Apr – 3 May
15 Apr
8-12 wk
28 Jun
5 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
Greenhouse
10 – 24 Mar
21 Mar
10-12 wk
2 Jun
1 wk after
Sunflower
Helianthus annuus
12 – 19 May
15 Jun
3-4 wk
9 Jun
6 Jul
2 wk after
1 Jul
5 wk after
China aster
Callistephus chinensis
14 – 28 Apr
4 Jun
6-8 wk
9 Jun
16 Jul
2 wk after
15 Jul
7 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
26 Apr
6-8 wk
2 Jun
7 Jun
1 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
14 – 28 Apr
26 Apr
6-8 wk
9 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
0 wk
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
31 Mar – 28 Apr
9 Apr
6-10 wk
9 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
27 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
11 May
8-10 wk
9 Jun
6 Jul
2 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