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Method
Rel. frost
Last spring frost (0°C) 18 May Frost 1 of 4 years · 20 years of data
Frost-free season 136 days 18 May – 1 Oct
Probability that frost is over

75% = 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)
30 Mar – 13 Apr
16 Jun
5-7 wk
18 May
21 Jul
0 wk
22 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 Apr
28 Jun
4-6 wk
18 May
26 Jul
0 wk
22 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Fleece
8 Mar – 5 Apr
4 Apr
8-12 wk
31 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
30 Mar – 13 Apr
11 Jun
5-7 wk
18 May
16 Jul
0 wk
18 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
22 – 29 May
29 May
3-4 wk
19 Jun
19 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
6 Jun
4-5 wk
19 Jun
4 Jul
5 wk after
6 Jul
7 wk after
Butter bean
Phaseolus lunatus
Greenhouse
29 May – 5 Jun
3-4 wk
26 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
23 Feb – 23 Mar
1 Apr
8-12 wk
18 May
27 May
0 wk
8 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
16 Jun
1 wk after
22 May
6 Jun
1 wk after
Maize
Zea mays
3 – 10 May
19 May
3-4 wk
31 May
9 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
22 – 29 Apr
5 Jul
3-4 wk
20 May
26 Jul
0 wk
8 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
18 May
6 Jul
0 wk
18 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
30 Mar – 13 Apr
11 Jun
5-7 wk
18 May
16 Jul
0 wk
18 May
6 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
6 Jun
4-6 wk
3 Jun
4 Jul
2 wk after
3 Jun
24 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Mar – 13 Apr
21 Jun
5-7 wk
18 May
26 Jul
0 wk
22 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
22 – 29 May
22 Jun
3-4 wk
19 Jun
13 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
22 – 29 Apr
17 Jun
3-4 wk
20 May
8 Jul
0 wk
8 Jun
28 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 Apr
23 Jun
4-6 wk
18 May
21 Jul
0 wk
Lettuce
Lactuca sativa
20 – 27 Apr
10 Jul
3-4 wk
18 May
31 Jul
0 wk
22 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
6 – 20 Apr
23 Jun
4-6 wk
18 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Apr – 4 May
2 Jun
2-4 wk
18 May
16 Jun
0 wk
18 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 May
16 Jun
1 wk after
22 May
6 Jun
1 wk after
Spinach
Spinacia oleracea
20 – 27 Apr
25 Jul
3-4 wk
18 May
15 Aug
0 wk
14 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
11 wk after
Garden tomato
Solanum lycopersicum
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
3 – 17 May
24 Jun
2-4 wk
31 May
8 Jul
2 wk after
6 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 Apr
23 Jun
4-6 wk
18 May
21 Jul
0 wk
Garden pea
Pisum sativum
20 – 27 Apr
25 Jun
3-4 wk
18 May
16 Jul
0 wk
22 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
8 – 22 May
31 May
4-6 wk
19 Jun
28 Jun
5 wk after
Lemon balm
Melissa officinalis
9 – 23 Mar
21 May
8-10 wk
18 May
16 Jul
0 wk
22 Jun
6 Jul
5 wk after
Dill
Anethum graveolens
22 May
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
23 Mar – 6 Apr
4 Jun
6-8 wk
18 May
16 Jul
0 wk
22 May
6 Jul
1 wk after
Spearmint
Mentha spicata
23 Feb – 23 Mar
21 May
8-12 wk
18 May
16 Jul
0 wk
22 Jun
6 Jul
5 wk after
Coriander
Coriandrum sativum
18 May
15 Aug
0 wk
8 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
11 – 25 Mar
6 May
8-10 wk
20 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
9 – 23 Mar
11 May
8-10 wk
18 May
6 Jul
0 wk
Oregano
Origanum vulgare
23 Mar – 6 Apr
25 May
6-8 wk
18 May
6 Jul
0 wk
22 Jun
26 Jun
5 wk after
Parsley
Petroselinum crispum
23 Mar – 6 Apr
25 May
6-8 wk
18 May
6 Jul
0 wk
22 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
11 Feb – 11 Mar
7 Apr
10-14 wk
20 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
22 – 29 May
7 Jun
3-4 wk
19 Jun
28 Jun
5 wk after
Cornflower
Centaurea cyanus
18 May
16 Jul
0 wk
22 May
6 Jul
1 wk after
Statice
Limonium sinuatum
22 Mar – 5 Apr
7 May
8-10 wk
31 May
2 Jul
2 wk after
Sweet William
Dianthus barbatus
23 Mar – 6 Apr
6-8 wk
18 May
0 wk
3 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
5 – 19 Apr
21 May
6-8 wk
31 May
2 Jul
2 wk after
31 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
3 – 17 Apr
25 May
6-8 wk
29 May
6 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
27 Apr – 25 May
8 Jun
4-8 wk
22 Jun
6 Jul
5 wk after
22 Jun
26 Jun
5 wk after
Foxglove
Digitalis purpurea
9 – 23 Mar
8-10 wk
18 May
0 wk
8 Jun
3 wk after
Busy lizzie
Impatiens walleriana
27 Mar – 24 Apr
26 Jun
8-12 wk
19 Jun
21 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
5 – 19 Apr
31 May
6-8 wk
31 May
12 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
19 Apr – 3 May
9 May
4-6 wk
31 May
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
11 – 25 Mar
21 Apr
8-10 wk
20 May
16 Jun
0 wk
Love in a mist
Nigella damascena
18 May
1 Jul
0 wk
22 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
5 – 19 Apr
11 May
6-8 wk
31 May
22 Jun
2 wk after
31 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
25 Feb – 25 Mar
21 Apr
8-12 wk
20 May
16 Jun
0 wk
Cardoon
Cynara cardunculus
8 Mar – 5 Apr
22 Mar
8-12 wk
31 May
2 wk after
Regal-foxtail
Ptilotus nobilis
27 Mar – 24 Apr
23 Apr
8-12 wk
19 Jun
5 wk after
Globe amaranth
Gomphrena globosa
24 Apr – 8 May
7 May
6-8 wk
19 Jun
5 wk after
Corn poppy
Papaver rhoeas
18 May
16 Jul
0 wk
22 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
23 Feb – 23 Mar
11 May
8-12 wk
18 May
6 Jul
0 wk
3 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
10 – 24 Apr
17 May
8-10 wk
19 Jun
12 Jul
5 wk after
Sweet pea
Lathyrus odoratus
23 Mar – 13 Apr
1 Jun
5-8 wk
18 May
6 Jul
0 wk
Stock
Matthiola incana
23 Mar – 6 Apr
4 Jun
6-8 wk
18 May
16 Jul
0 wk
8 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
23 Mar – 6 Apr
5 May
6-8 wk
18 May
16 Jun
0 wk
8 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
8 – 22 May
16 May
4-6 wk
19 Jun
5 wk after
Garden pansy
Viola × wittrockiana
9 – 23 Mar
21 May
8-10 wk
18 May
16 Jul
0 wk
3 Jun
6 Jul
2 wk after
Petunia
Petunia
8 Mar – 5 Apr
7 May
8-12 wk
31 May
2 Jul
2 wk after
Sweet Scabious
Scabiosa atropurpurea
25 Mar – 8 Apr
5 May
6-8 wk
20 May
16 Jun
0 wk
6 Jul
7 wk after
Common zinnia
Zinnia elegans
19 Apr – 3 May
8 Jun
4-6 wk
31 May
6 Jul
2 wk after
Common morning glory
Ipomoea purpurea
15 – 29 May
7 Jun
3-5 wk
19 Jun
28 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
19 Apr – 3 May
8 Jun
4-6 wk
31 May
6 Jul
2 wk after
6 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
17 Apr – 15 May
23 May
8-12 wk
10 Jul
18 Jul
8 wk after
Bee balm
Monarda didyma
23 Feb – 23 Mar
21 Apr
8-12 wk
18 May
16 Jun
0 wk
22 Jun
5 wk after
Yarrow
Achillea millefolium
23 Mar – 6 Apr
5 Apr
6-8 wk
18 May
0 wk
8 Jun
3 wk after
Safflower
Carthamus tinctorius
18 May
16 Jun
0 wk
22 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
23 Mar – 6 Apr
25 May
6-8 wk
18 May
6 Jul
0 wk
30 Apr
26 Jun
3 wk before
Bishop's flower
Ammi majus
6 – 20 Apr
8 Jun
4-6 wk
18 May
6 Jul
0 wk
8 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
27 Mar – 10 Apr
28 Mar
10-12 wk
19 Jun
5 wk after
Sunflower
Helianthus annuus
3 – 10 May
15 Jun
3-4 wk
31 May
6 Jul
2 wk after
22 Jun
26 Jun
5 wk after
China aster
Callistephus chinensis
5 – 19 Apr
4 Jun
6-8 wk
31 May
16 Jul
2 wk after
6 Jul
6 Jul
7 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
31 May
6-8 wk
24 May
12 Jul
1 wk after
6 Jul
7 wk after
Hollyhock
Alcea rosea
23 Mar – 6 Apr
6-8 wk
18 May
0 wk
8 Jun
3 wk after
Alpine delphinium
Delphinium elatum
23 Feb – 23 Mar
21 Apr
8-12 wk
18 May
16 Jun
0 wk
22 Jun
5 wk after
African marigold
Tagetes erecta
5 – 19 Apr
31 May
6-8 wk
31 May
12 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
25 Mar – 8 Apr
25 May
6-8 wk
20 May
6 Jul
0 wk
6 Jul
7 wk after
Wood sage
Salvia nemorosa
9 – 23 Mar
11 Apr
8-10 wk
18 May
6 Jun
0 wk
22 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
10 Apr – 8 May
17 May
6-10 wk
19 Jun
28 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
18 May
16 Jul
0 wk
22 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
22 Mar – 5 Apr
9 May
8-10 wk
31 May
4 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
23 Mar – 6 Apr
5 May
6-8 wk
18 May
16 Jun
0 wk
8 Jun
3 wk after