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Method
Rel. frost
Last spring frost (0°C) 8 May Frost 3 of 4 years · 20 years of data
Frost-free season 139 days 8 May – 24 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)
20 Mar – 3 Apr
13 Jun
5-7 wk
8 May
18 Jul
0 wk
9 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
27 Mar – 10 Apr
25 Jun
4-6 wk
8 May
23 Jul
0 wk
9 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
23 Feb – 23 Mar
10 Apr
8-12 wk
18 May
5 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Mar – 3 Apr
8 Jun
5-7 wk
8 May
13 Jul
0 wk
8 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
16 – 23 May
3-4 wk
13 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
9 – 16 May
31 May
4-5 wk
13 Jun
28 Jun
5 wk after
20 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
21 – 28 May
3-4 wk
18 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Feb – 13 Mar
27 Mar
8-12 wk
8 May
22 May
0 wk
21 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 May
11 Jun
0 wk
9 May
1 Jun
0 wk
Maize
Zea mays
Fleece
20 – 27 Apr
25 May
3-4 wk
18 May
15 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 Apr
1 Jul
3-4 wk
13 May
22 Jul
1 wk after
21 May
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 May
3 Jul
0 wk
8 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Mar – 3 Apr
8 Jun
5-7 wk
8 May
13 Jul
0 wk
8 May
3 Jul
0 wk
Potato
Solanum tuberosum
6 – 20 Apr
24 May
4-6 wk
18 May
21 Jun
1 wk after
18 May
11 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Mar – 3 Apr
18 Jun
5-7 wk
8 May
23 Jul
0 wk
9 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
16 – 23 May
9 Jun
3-4 wk
13 Jun
30 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 Apr
31 May
3-4 wk
13 May
21 Jun
1 wk after
21 May
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
27 Mar – 10 Apr
20 Jun
4-6 wk
8 May
18 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Apr
7 Jul
3-4 wk
8 May
28 Jul
0 wk
9 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Mar – 10 Apr
20 Jun
4-6 wk
8 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Apr
30 May
2-4 wk
8 May
13 Jun
0 wk
8 May
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 May
11 Jun
0 wk
9 May
1 Jun
0 wk
Spinach
Spinacia oleracea
10 – 17 Apr
22 Jul
3-4 wk
8 May
12 Aug
0 wk
5 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
2 – 16 Jun
4-6 wk
14 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
23 Mar – 6 Apr
4 May
6-8 wk
18 May
15 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
30 Apr – 14 May
11 Jun
2-4 wk
28 May
25 Jun
3 wk after
20 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
27 Mar – 10 Apr
20 Jun
4-6 wk
8 May
18 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Apr
22 Jun
3-4 wk
8 May
13 Jul
0 wk
9 May
3 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
2 – 16 May
18 May
4-6 wk
13 Jun
15 Jun
5 wk after
Lemon balm
Melissa officinalis
27 Feb – 13 Mar
18 May
8-10 wk
8 May
13 Jul
0 wk
2 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
9 May
22 Jul
0 wk
Wild chives
Allium schoenoprasum
13 – 27 Mar
1 Jun
6-8 wk
8 May
13 Jul
0 wk
9 May
3 Jul
0 wk
Spearmint
Mentha spicata
13 Feb – 13 Mar
18 May
8-12 wk
8 May
13 Jul
0 wk
2 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
8 May
11 Aug
0 wk
21 May
1 Aug
2 wk after
Garden sage
Salvia officinalis
4 – 18 Mar
3 May
8-10 wk
13 May
28 Jun
1 wk after
Common thyme
Thymus vulgaris
27 Feb – 13 Mar
8 May
8-10 wk
8 May
3 Jul
0 wk
Oregano
Origanum vulgare
13 – 27 Mar
22 May
6-8 wk
8 May
3 Jul
0 wk
2 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
13 – 27 Mar
22 May
6-8 wk
8 May
3 Jul
0 wk
9 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
4 Feb – 4 Mar
31 Mar
10-14 wk
13 May
9 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
16 – 23 May
25 May
3-4 wk
13 Jun
15 Jun
5 wk after
Cornflower
Centaurea cyanus
8 May
13 Jul
0 wk
9 May
3 Jul
0 wk
Statice
Limonium sinuatum
19 Mar – 2 Apr
27 Apr
8-10 wk
28 May
22 Jun
3 wk after
Sweet William
Dianthus barbatus
13 – 27 Mar
6-8 wk
8 May
0 wk
18 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
2 – 16 Apr
11 May
6-8 wk
28 May
22 Jun
3 wk after
14 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
26 Mar – 9 Apr
16 May
6-8 wk
21 May
27 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
7 Apr – 5 May
30 May
4-8 wk
2 Jun
27 Jun
4 wk after
2 Jun
17 Jun
4 wk after
Foxglove
Digitalis purpurea
27 Feb – 13 Mar
8-10 wk
8 May
0 wk
21 May
2 wk after
Busy lizzie
Impatiens walleriana
21 Mar – 18 Apr
18 Jun
8-12 wk
13 Jun
13 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
2 – 16 Apr
21 May
6-8 wk
28 May
2 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
16 – 30 Apr
1 May
4-6 wk
28 May
29 May
3 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Mar
17 Apr
8-10 wk
13 May
12 Jun
1 wk after
Love in a mist
Nigella damascena
8 May
28 Jun
0 wk
9 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
2 – 16 Apr
1 May
6-8 wk
28 May
12 Jun
3 wk after
14 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
18 Feb – 18 Mar
17 Apr
8-12 wk
13 May
12 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
23 Feb – 23 Mar
19 Mar
8-12 wk
18 May
1 wk after
Regal-foxtail
Ptilotus nobilis
21 Mar – 18 Apr
10 Apr
8-12 wk
13 Jun
5 wk after
Globe amaranth
Gomphrena globosa
18 Apr – 2 May
24 Apr
6-8 wk
13 Jun
5 wk after
Corn poppy
Papaver rhoeas
8 May
13 Jul
0 wk
9 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
13 Feb – 13 Mar
8 May
8-12 wk
8 May
3 Jul
0 wk
18 May
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
4 – 18 Apr
7 May
8-10 wk
13 Jun
2 Jul
5 wk after
Sweet pea
Lathyrus odoratus
13 Mar – 3 Apr
29 May
5-8 wk
8 May
3 Jul
0 wk
Stock
Matthiola incana
13 – 27 Mar
1 Jun
6-8 wk
8 May
13 Jul
0 wk
21 May
3 Jul
2 wk after
Wormwood
Artemisia absinthium
13 – 27 Mar
2 May
6-8 wk
8 May
13 Jun
0 wk
21 May
3 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
16 – 30 Apr
16 May
4-6 wk
28 May
13 Jun
3 wk after
Garden pansy
Viola × wittrockiana
27 Feb – 13 Mar
18 May
8-10 wk
8 May
13 Jul
0 wk
18 May
3 Jul
1 wk after
Petunia
Petunia
5 Mar – 2 Apr
27 Apr
8-12 wk
28 May
22 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Mar – 1 Apr
1 May
6-8 wk
13 May
12 Jun
1 wk after
20 Jun
6 wk after
Common zinnia
Zinnia elegans
16 – 30 Apr
31 May
4-6 wk
28 May
28 Jun
3 wk after
Common morning glory
Ipomoea purpurea
9 – 23 May
25 May
3-5 wk
13 Jun
15 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
16 – 30 Apr
30 May
4-6 wk
28 May
27 Jun
3 wk after
20 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
21 Mar – 18 Apr
23 May
8-12 wk
13 Jun
18 Jul
5 wk after
Bee balm
Monarda didyma
13 Feb – 13 Mar
18 Apr
8-12 wk
8 May
13 Jun
0 wk
2 Jun
3 Jun
4 wk after
Yarrow
Achillea millefolium
13 – 27 Mar
2 Apr
6-8 wk
8 May
14 May
0 wk
21 May
2 wk after
Safflower
Carthamus tinctorius
8 May
13 Jun
0 wk
9 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
13 – 27 Mar
22 May
6-8 wk
8 May
3 Jul
0 wk
22 Apr
23 Jun
2 wk before
Bishop's flower
Ammi majus
27 Mar – 10 Apr
5 Jun
4-6 wk
8 May
3 Jul
0 wk
21 May
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
5 – 19 Mar
29 Mar
10-12 wk
28 May
7 Jun
3 wk after
Sunflower
Helianthus annuus
30 Apr – 7 May
8 Jun
3-4 wk
28 May
29 Jun
3 wk after
2 Jun
19 Jun
4 wk after
China aster
Callistephus chinensis
2 – 16 Apr
28 May
6-8 wk
28 May
9 Jul
3 wk after
20 Jun
29 Jun
6 wk after
Annual phlox
Phlox drummondii
23 Mar – 6 Apr
21 May
6-8 wk
18 May
2 Jul
1 wk after
20 Jun
22 Jun
6 wk after
Hollyhock
Alcea rosea
13 – 27 Mar
6-8 wk
8 May
0 wk
21 May
2 wk after
Alpine delphinium
Delphinium elatum
13 Feb – 13 Mar
18 Apr
8-12 wk
8 May
13 Jun
0 wk
2 Jun
3 Jun
4 wk after
African marigold
Tagetes erecta
2 – 16 Apr
21 May
6-8 wk
28 May
2 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
18 Mar – 1 Apr
18 May
6-8 wk
13 May
29 Jun
1 wk after
20 Jun
6 wk after
Wood sage
Salvia nemorosa
27 Feb – 13 Mar
8 Apr
8-10 wk
8 May
3 Jun
0 wk
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
4 Apr – 2 May
4 May
6-10 wk
13 Jun
15 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
8 May
13 Jul
0 wk
9 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
19 Mar – 2 Apr
3 May
8-10 wk
28 May
28 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Mar
2 May
6-8 wk
8 May
13 Jun
0 wk
21 May
3 Jun
2 wk after