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Rel. frost
Last spring frost (0°C) 2 May Frost 9 of 10 years · 20 years of data
Frost-free season 124 days 2 May – 3 Sep
Probability that frost is over

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