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Rel. frost
Last spring frost (0°C) 21 May Frost 1 of 4 years · 20 years of data
Frost-free season 137 days 21 May – 5 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)
4 – 18 May
19 Jun
5-7 wk
22 Jun
24 Jul
5 wk after
15 May
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
29 Apr – 13 May
1 Jul
4-6 wk
10 Jun
29 Jul
3 wk after
15 May
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
8 Apr – 6 May
24 Apr
8-12 wk
1 Jul
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Mar
14 Jun
5-7 wk
21 Apr
19 Jul
4 wk before
8 May
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
29 Jun – 6 Jul
3-4 wk
27 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 Jun
4-5 wk
27 Jul
10 wk after
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
3 – 10 Jul
3-4 wk
31 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
26 Feb – 26 Mar
4 Apr
8-12 wk
21 May
30 May
Vid frost
3 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
19 Jun
1 wk before
15 May
9 Jun
1 wk before
Maize
Zea mays
18 – 25 Jun
3-4 wk
16 Jul
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 May – 1 Jun
8 Jul
3-4 wk
22 Jun
29 Jul
5 wk after
3 Jun
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 May
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Mar
14 Jun
5-7 wk
21 Apr
19 Jul
4 wk before
8 May
9 Jul
2 wk before
Potato
Solanum tuberosum
14 – 28 Apr
11 Jun
4-6 wk
26 May
9 Jul
1 wk after
26 May
29 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Mar
24 Jun
5-7 wk
21 Apr
29 Jul
4 wk before
15 May
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
29 Jun – 6 Jul
3-4 wk
27 Jul
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 May – 1 Jun
27 Jun
3-4 wk
22 Jun
18 Jul
5 wk after
3 Jun
8 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
29 Apr – 13 May
26 Jun
4-6 wk
10 Jun
24 Jul
3 wk after
Lettuce
Lactuca sativa
14 – 21 Apr
13 Jul
3-4 wk
12 May
3 Aug
1 wk before
15 May
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
31 Mar – 14 Apr
26 Jun
4-6 wk
12 May
24 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Apr
5 Jun
2-4 wk
8 May
19 Jun
2 wk before
8 May
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
19 Jun
1 wk before
15 May
9 Jun
1 wk before
Spinach
Spinacia oleracea
3 – 10 Apr
28 Jul
3-4 wk
1 May
18 Aug
3 wk before
1 May
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
22 Jun – 6 Jul
4-6 wk
3 Aug
11 wk after
Garden tomato
Solanum lycopersicum
21 May – 4 Jun
6-8 wk
16 Jul
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
18 Jun – 2 Jul
25 Jun
2-4 wk
16 Jul
8 wk after
1 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
29 Apr – 13 May
26 Jun
4-6 wk
10 Jun
24 Jul
3 wk after
Garden pea
Pisum sativum
3 – 10 Apr
28 Jun
3-4 wk
1 May
19 Jul
3 wk before
15 May
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
15 – 29 Jun
4-6 wk
27 Jul
10 wk after
Lemon balm
Melissa officinalis
12 – 26 Mar
24 May
8-10 wk
21 May
19 Jul
Vid frost
16 Jun
9 Jul
4 wk after
Dill
Anethum graveolens
15 May
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
24 Feb – 10 Mar
7 Jun
6-8 wk
21 Apr
19 Jul
4 wk before
15 May
9 Jul
1 wk before
Spearmint
Mentha spicata
6 Feb – 6 Mar
24 May
8-12 wk
1 May
19 Jul
3 wk before
16 Jun
9 Jul
4 wk after
Coriander
Coriandrum sativum
3 Jun
8 Aug
2 wk after
Garden sage
Salvia officinalis
13 – 27 Apr
9 May
8-10 wk
22 Jun
4 Jul
5 wk after
Common thyme
Thymus vulgaris
1 – 15 Apr
14 May
8-10 wk
10 Jun
9 Jul
3 wk after
Oregano
Origanum vulgare
4 – 18 Apr
28 May
6-8 wk
30 May
9 Jul
1 wk after
16 Jun
29 Jun
4 wk after
Parsley
Petroselinum crispum
6 – 20 Mar
28 May
6-8 wk
1 May
9 Jul
3 wk before
15 May
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
16 Mar – 13 Apr
10 Apr
10-14 wk
22 Jun
5 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
29 Jun – 6 Jul
3-4 wk
27 Jul
10 wk after
Cornflower
Centaurea cyanus
1 May
19 Jul
3 wk before
15 May
9 Jul
1 wk before
Statice
Limonium sinuatum
7 – 21 May
11 May
8-10 wk
16 Jul
8 wk after
Sweet William
Dianthus barbatus
6 – 20 Mar
6-8 wk
1 May
3 wk before
26 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
21 May – 4 Jun
25 May
6-8 wk
16 Jul
8 wk after
3 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 May
28 May
6-8 wk
9 Jul
9 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
21 Apr – 19 May
11 Jun
4-8 wk
16 Jun
9 Jul
4 wk after
16 Jun
29 Jun
4 wk after
Foxglove
Digitalis purpurea
20 Feb – 6 Mar
8-10 wk
1 May
3 wk before
3 Jun
2 wk after
Busy lizzie
Impatiens walleriana
4 May – 1 Jun
3 Jul
8-12 wk
27 Jul
28 Aug
10 wk after
Creeping zinnia
Sanvitalia procumbens
21 May – 4 Jun
4 Jun
6-8 wk
16 Jul
16 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 Jun
4-6 wk
16 Jul
8 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Apr
24 Apr
8-10 wk
22 Jun
5 wk after
Love in a mist
Nigella damascena
15 May
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
21 May – 4 Jun
6-8 wk
16 Jul
8 wk after
3 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
30 Mar – 27 Apr
24 Apr
8-12 wk
22 Jun
5 wk after
Cardoon
Cynara cardunculus
Fleece
8 Apr – 6 May
8-12 wk
1 Jul
6 wk after
Regal-foxtail
Ptilotus nobilis
4 May – 1 Jun
8-12 wk
27 Jul
10 wk after
Globe amaranth
Gomphrena globosa
1 – 15 Jun
6-8 wk
27 Jul
10 wk after
Corn poppy
Papaver rhoeas
15 May
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
17 Feb – 17 Mar
14 May
8-12 wk
12 May
9 Jul
1 wk before
26 May
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 May – 1 Jun
21 May
8-10 wk
27 Jul
10 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Mar
4 Jun
5-8 wk
1 May
9 Jul
3 wk before
Stock
Matthiola incana
17 – 31 Mar
7 Jun
6-8 wk
12 May
19 Jul
1 wk before
3 Jun
9 Jul
2 wk after
Wormwood
Artemisia absinthium
6 – 20 Mar
8 May
6-8 wk
1 May
19 Jun
3 wk before
3 Jun
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
4 – 18 Jun
4-6 wk
16 Jul
8 wk after
Garden pansy
Viola × wittrockiana
10 – 24 Feb
24 May
8-10 wk
21 Apr
19 Jul
4 wk before
26 May
9 Jul
1 wk after
Petunia
Petunia
23 Apr – 21 May
11 May
8-12 wk
16 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Apr – 11 May
8 May
6-8 wk
22 Jun
5 wk after
1 Jul
6 wk after
Common zinnia
Zinnia elegans
4 – 18 Jun
15 Jun
4-6 wk
16 Jul
8 wk after
Common morning glory
Ipomoea purpurea
22 Jun – 6 Jul
3-5 wk
27 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 Jun
11 Jun
4-6 wk
16 Jul
8 wk after
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
11 May – 8 Jun
24 May
8-12 wk
3 Aug
11 wk after
Bee balm
Monarda didyma
26 Feb – 26 Mar
24 Apr
8-12 wk
21 May
19 Jun
Vid frost
16 Jun
4 wk after
Yarrow
Achillea millefolium
6 – 20 Mar
8 Apr
6-8 wk
1 May
20 May
3 wk before
3 Jun
2 wk after
Safflower
Carthamus tinctorius
1 May
19 Jun
3 wk before
15 May
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
24 Feb – 10 Mar
28 May
6-8 wk
21 Apr
9 Jul
4 wk before
8 May
29 Jun
2 wk before
Bishop's flower
Ammi majus
24 Apr – 8 May
11 Jun
4-6 wk
5 Jun
9 Jul
2 wk after
3 Jun
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
23 Apr – 7 May
10-12 wk
16 Jul
8 wk after
Sunflower
Helianthus annuus
18 – 25 Jun
18 Jun
3-4 wk
16 Jul
8 wk after
16 Jun
29 Jun
4 wk after
China aster
Callistephus chinensis
21 May – 4 Jun
7 Jun
6-8 wk
16 Jul
19 Jul
8 wk after
1 Jul
9 Jul
6 wk after
Annual phlox
Phlox drummondii
6 – 20 May
4 Jun
6-8 wk
1 Jul
16 Jul
6 wk after
1 Jul
6 Jul
6 wk after
Hollyhock
Alcea rosea
6 – 20 Mar
6-8 wk
1 May
3 wk before
3 Jun
2 wk after
Alpine delphinium
Delphinium elatum
18 Mar – 15 Apr
24 Apr
8-12 wk
10 Jun
19 Jun
3 wk after
16 Jun
4 wk after
African marigold
Tagetes erecta
21 May – 4 Jun
4 Jun
6-8 wk
16 Jul
16 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
27 Apr – 11 May
28 May
6-8 wk
22 Jun
9 Jul
5 wk after
1 Jul
6 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
14 Apr
8-10 wk
30 May
9 Jun
1 wk after
16 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
18 May – 15 Jun
18 May
6-10 wk
27 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
15 May
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
7 – 21 May
13 May
8-10 wk
16 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Mar
8 May
6-8 wk
1 May
19 Jun
3 wk before
3 Jun
9 Jun
2 wk after