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Method
Rel. frost
Last spring frost (0°C) 6 May Frost 3 of 4 years · 20 years of data
Frost-free season 134 days 6 May – 17 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)
18 Mar – 1 Apr
19 Jun
5-7 wk
6 May
24 Jul
0 wk
30 Apr
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
25 Mar – 8 Apr
1 Jul
4-6 wk
6 May
29 Jul
0 wk
30 Apr
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
3 – 31 Mar
2 Apr
8-12 wk
26 May
28 May
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Mar – 1 Apr
14 Jun
5-7 wk
6 May
19 Jul
0 wk
23 Apr
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
14 – 21 May
27 May
3-4 wk
11 Jun
17 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
7 – 14 May
20 May
4-5 wk
11 Jun
17 Jun
5 wk after
16 Jun
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
19 – 26 May
23 May
3-4 wk
16 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
11 Feb – 11 Mar
2 Apr
8-12 wk
6 May
28 May
0 wk
19 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 Apr
17 Jun
1 wk before
30 Apr
7 Jun
1 wk before
Maize
Zea mays
28 Apr – 5 May
17 May
3-4 wk
26 May
7 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 Apr
6 Jul
3-4 wk
11 May
27 Jul
1 wk after
19 May
17 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 May
9 Jul
0 wk
23 Apr
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Mar – 1 Apr
14 Jun
5-7 wk
6 May
19 Jul
0 wk
23 Apr
9 Jul
2 wk before
Potato
Solanum tuberosum
30 Mar – 13 Apr
4 Jun
4-6 wk
11 May
2 Jul
1 wk after
11 May
22 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Mar – 1 Apr
24 Jun
5-7 wk
6 May
29 Jul
0 wk
30 Apr
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
14 – 21 May
14 Jun
3-4 wk
11 Jun
5 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
13 – 20 Apr
11 Jun
3-4 wk
11 May
2 Jul
1 wk after
19 May
22 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Mar – 8 Apr
26 Jun
4-6 wk
6 May
24 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 Apr
13 Jul
3-4 wk
6 May
3 Aug
0 wk
30 Apr
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Mar – 8 Apr
26 Jun
4-6 wk
6 May
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Mar – 9 Apr
5 Jun
2-4 wk
23 Apr
19 Jun
2 wk before
23 Apr
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 Apr
17 Jun
1 wk before
30 Apr
7 Jun
1 wk before
Spinach
Spinacia oleracea
8 – 15 Apr
28 Jul
3-4 wk
6 May
18 Aug
0 wk
16 Apr
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
7 – 21 Jun
4-6 wk
19 Jul
11 wk after
Garden tomato
Solanum lycopersicum
31 Mar – 14 Apr
26 Apr
6-8 wk
26 May
7 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
28 Apr – 12 May
16 Jun
2-4 wk
26 May
30 Jun
3 wk after
16 Jun
20 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Mar – 8 Apr
26 Jun
4-6 wk
6 May
24 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 Apr
28 Jun
3-4 wk
6 May
19 Jul
0 wk
30 Apr
9 Jul
1 wk before

Herbs

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