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Method
Rel. frost
Last spring frost (0°C) 12 May Frost 3 of 4 years · 20 years of data
Frost-free season 134 days 12 May – 23 Sep
Probability that frost is over

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