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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 10 years · 20 years of data
Frost-free season 134 days 24 May – 5 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)
5 – 19 Apr
16 Jun
5-7 wk
24 May
21 Jul
0 wk
28 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
28 Jun
4-6 wk
24 May
26 Jul
0 wk
28 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
11 Jun
5-7 wk
24 May
16 Jul
0 wk
24 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
2 – 9 May
18 May
3-4 wk
30 May
8 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
21 – 28 May
8 Jun
4-5 wk
25 Jun
6 Jul
5 wk after
12 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
1 Apr
8-12 wk
24 May
27 May
0 wk
14 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
16 Jun
1 wk after
28 May
6 Jun
1 wk after
Maize
Zea mays
Greenhouse
26 Apr – 3 May
8 May
3-4 wk
24 May
29 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
5 Jul
3-4 wk
26 May
26 Jul
0 wk
14 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
6 Jul
0 wk
24 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
11 Jun
5-7 wk
24 May
16 Jul
0 wk
24 May
6 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
8 Jun
4-6 wk
9 Jun
6 Jul
2 wk after
9 Jun
26 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
21 Jun
5-7 wk
24 May
26 Jul
0 wk
28 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
9 – 16 May
23 May
3-4 wk
6 Jun
13 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
22 Jun
3-4 wk
26 May
13 Jul
0 wk
14 Jun
3 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
10 Jul
3-4 wk
24 May
31 Jul
0 wk
28 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
2 Jun
2-4 wk
24 May
16 Jun
0 wk
24 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 May
16 Jun
1 wk after
28 May
6 Jun
1 wk after
Spinach
Spinacia oleracea
26 Apr – 3 May
25 Jul
3-4 wk
24 May
15 Aug
0 wk
20 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
25 Jun – 9 Jul
4-6 wk
6 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
29 Mar – 12 Apr
17 Apr
6-8 wk
24 May
29 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
2 – 16 May
25 May
2-4 wk
30 May
8 Jun
1 wk after
28 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
25 Jun
3-4 wk
24 May
16 Jul
0 wk
28 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
25 Apr – 9 May
1 May
4-6 wk
6 Jun
2 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
21 May
8-10 wk
24 May
16 Jul
0 wk
28 Jun
6 Jul
5 wk after
Dill
Anethum graveolens
28 May
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
4 Jun
6-8 wk
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Spearmint
Mentha spicata
1 – 29 Mar
21 May
8-12 wk
24 May
16 Jul
0 wk
28 Jun
6 Jul
5 wk after
Coriander
Coriandrum sativum
24 May
15 Aug
0 wk
14 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
6 May
8-10 wk
26 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
11 May
8-10 wk
24 May
6 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
25 May
6-8 wk
24 May
6 Jul
0 wk
28 Jun
5 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
25 May
6-8 wk
24 May
6 Jul
0 wk
28 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
7 Apr
10-14 wk
26 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
9 – 16 May
3-4 wk
6 Jun
2 wk after
Cornflower
Centaurea cyanus
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Statice
Limonium sinuatum
28 Mar – 11 Apr
29 Mar
8-10 wk
6 Jun
2 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
9 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
12 Apr
6-8 wk
6 Jun
2 wk after
6 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
20 Apr
6-8 wk
4 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 May
4 May
4-8 wk
28 Jun
5 wk after
28 Jun
5 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
14 Jun
3 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
19 May
8-12 wk
25 Jun
14 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
22 Apr
6-8 wk
6 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
21 Apr
8-10 wk
26 May
16 Jun
0 wk
Love in a mist
Nigella damascena
24 May
1 Jul
0 wk
28 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
27 Apr
6-8 wk
30 May
8 Jun
1 wk after
22 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
21 Apr
8-12 wk
26 May
16 Jun
0 wk
Cardoon
Cynara cardunculus
14 Mar – 11 Apr
22 Mar
8-12 wk
6 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
7 Mar – 4 Apr
6 Apr
8-12 wk
30 May
1 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
4 – 18 Apr
20 Apr
6-8 wk
30 May
1 Jun
1 wk after
Corn poppy
Papaver rhoeas
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
1 – 29 Mar
11 May
8-12 wk
24 May
6 Jul
0 wk
9 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
28 Mar – 11 Apr
3 May
8-10 wk
6 Jun
28 Jun
2 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
1 Jun
5-8 wk
24 May
6 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
4 Jun
6-8 wk
24 May
16 Jul
0 wk
14 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
5 May
6-8 wk
24 May
16 Jun
0 wk
14 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
29 Apr
4-6 wk
30 May
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
21 May
8-10 wk
24 May
16 Jul
0 wk
9 Jun
6 Jul
2 wk after
Petunia
Petunia
14 Mar – 11 Apr
29 Mar
8-12 wk
6 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
5 May
6-8 wk
26 May
16 Jun
0 wk
12 Jul
7 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
1 May
4-6 wk
6 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
2 – 16 May
8 May
3-5 wk
6 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
4 May
4-6 wk
6 Jun
2 wk after
12 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
23 Apr
8-12 wk
25 Jun
5 wk after
Bee balm
Monarda didyma
1 – 29 Mar
21 Apr
8-12 wk
24 May
16 Jun
0 wk
28 Jun
5 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
5 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Safflower
Carthamus tinctorius
24 May
16 Jun
0 wk
28 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
25 May
6-8 wk
24 May
6 Jul
0 wk
6 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
8 Jun
4-6 wk
24 May
6 Jul
0 wk
14 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
21 Mar
10-12 wk
30 May
30 May
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
15 Jun
3-4 wk
6 Jun
6 Jul
2 wk after
28 Jun
5 wk after
China aster
Callistephus chinensis
11 – 25 Apr
4 Jun
6-8 wk
6 Jun
16 Jul
2 wk after
12 Jul
7 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
22 Apr
6-8 wk
30 May
3 Jun
1 wk after
12 Jul
7 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
21 Apr
8-12 wk
24 May
16 Jun
0 wk
28 Jun
5 wk after
African marigold
Tagetes erecta
11 – 25 Apr
22 Apr
6-8 wk
6 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
12 Jul
7 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
11 Apr
8-10 wk
24 May
6 Jun
0 wk
28 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
28 Mar – 25 Apr
17 Apr
6-10 wk
6 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
24 May
16 Jul
0 wk
28 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
11 May
8-10 wk
6 Jun
6 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
5 May
6-8 wk
24 May
16 Jun
0 wk
14 Jun
3 wk after