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Rel. frost
Last spring frost (0°C) 26 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 131 days 26 Apr – 4 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)
8 – 22 Mar
19 Jun
5-7 wk
26 Apr
24 Jul
0 wk
19 Apr
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Mar
1 Jul
4-6 wk
26 Apr
29 Jul
0 wk
19 Apr
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
12 Feb – 12 Mar
8-12 wk
7 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Mar
14 Jun
5-7 wk
26 Apr
19 Jul
0 wk
14 Apr
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
9 – 16 Apr
3-4 wk
7 May
2 wk after
Florence Fennel
Foeniculum vulgare
27 Apr – 4 May
18 May
4-5 wk
1 Jun
15 Jun
5 wk after
1 Jun
5 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 May
3-4 wk
8 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
1 Feb – 1 Mar
1 Apr
8-12 wk
26 Apr
27 May
0 wk
6 May
17 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
19 Apr
16 Jun
1 wk before
19 Apr
6 Jun
1 wk before
Maize
Zea mays
Season too short
29 Mar – 5 Apr
3-4 wk
26 Apr
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 Apr
8 Jul
3-4 wk
2 May
29 Jul
1 wk after
6 May
19 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 Apr
9 Jul
0 wk
14 Apr
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Mar
14 Jun
5-7 wk
26 Apr
19 Jul
0 wk
14 Apr
9 Jul
2 wk before
Potato
Solanum tuberosum
20 Mar – 3 Apr
28 May
4-6 wk
1 May
25 Jun
1 wk after
1 May
15 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Mar
24 Jun
5-7 wk
26 Apr
29 Jul
0 wk
19 Apr
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
9 – 16 Apr
11 May
3-4 wk
7 May
1 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 Apr
8 Jun
3-4 wk
2 May
29 Jun
1 wk after
6 May
19 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Mar
26 Jun
4-6 wk
26 Apr
24 Jul
0 wk
Lettuce
Lactuca sativa
29 Mar – 5 Apr
13 Jul
3-4 wk
26 Apr
3 Aug
0 wk
19 Apr
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Mar
26 Jun
4-6 wk
26 Apr
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 – 31 Mar
3 Jun
2-4 wk
14 Apr
17 Jun
2 wk before
14 Apr
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
19 Apr
16 Jun
1 wk before
19 Apr
6 Jun
1 wk before
Spinach
Spinacia oleracea
29 Mar – 5 Apr
28 Jul
3-4 wk
26 Apr
18 Aug
0 wk
8 Apr
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
23 May – 6 Jun
4-6 wk
4 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
1 – 15 Mar
6-8 wk
26 Apr
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
29 Mar – 12 Apr
13 May
2-4 wk
26 Apr
27 May
0 wk
6 May
17 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Mar
26 Jun
4-6 wk
26 Apr
24 Jul
0 wk
Garden pea
Pisum sativum
29 Mar – 5 Apr
28 Jun
3-4 wk
26 Apr
19 Jul
0 wk
19 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
Greenhouse
26 Mar – 9 Apr
19 Apr
4-6 wk
7 May
17 May
2 wk after
Lemon balm
Melissa officinalis
15 Feb – 1 Mar
24 May
8-10 wk
26 Apr
19 Jul
0 wk
17 May
9 Jul
3 wk after
Dill
Anethum graveolens
19 Apr
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
1 – 15 Mar
7 Jun
6-8 wk
26 Apr
19 Jul
0 wk
19 Apr
9 Jul
1 wk before
Spearmint
Mentha spicata
1 Feb – 1 Mar
24 May
8-12 wk
26 Apr
19 Jul
0 wk
17 May
9 Jul
3 wk after
Coriander
Coriandrum sativum
26 Apr
18 Aug
0 wk
6 May
8 Aug
1 wk after
Garden sage
Salvia officinalis
21 Feb – 7 Mar
9 May
8-10 wk
2 May
4 Jul
1 wk after
Common thyme
Thymus vulgaris
15 Feb – 1 Mar
14 May
8-10 wk
26 Apr
9 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Mar
28 May
6-8 wk
26 Apr
9 Jul
0 wk
17 May
29 Jun
3 wk after
Parsley
Petroselinum crispum
1 – 15 Mar
28 May
6-8 wk
26 Apr
9 Jul
0 wk
19 Apr
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
24 Jan – 21 Feb
3 Apr
10-14 wk
2 May
12 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
Greenhouse
9 – 16 Apr
26 Apr
3-4 wk
7 May
17 May
2 wk after
Cornflower
Centaurea cyanus
26 Apr
19 Jul
0 wk
19 Apr
9 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
26 Feb – 12 Mar
29 Mar
8-10 wk
7 May
24 May
2 wk after
Sweet William
Dianthus barbatus
1 – 15 Mar
6-8 wk
26 Apr
0 wk
1 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
12 – 26 Mar
12 Apr
6-8 wk
7 May
24 May
2 wk after
11 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Mar
26 Mar
6-8 wk
10 May
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
22 Mar – 19 Apr
9 Apr
4-8 wk
17 May
3 wk after
17 May
3 wk after
Foxglove
Digitalis purpurea
15 Feb – 1 Mar
8-10 wk
26 Apr
0 wk
6 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
20 Feb – 20 Mar
7 May
8-12 wk
15 May
2 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
12 – 26 Mar
22 Apr
6-8 wk
7 May
3 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 Apr
4-6 wk
15 May
3 wk after
Chinese lantern
Physalis alkekengi
21 Feb – 7 Mar
24 Apr
8-10 wk
2 May
19 Jun
1 wk after
Love in a mist
Nigella damascena
26 Apr
4 Jul
0 wk
19 Apr
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
12 – 26 Mar
2 Apr
6-8 wk
7 May
14 May
2 wk after
11 Jun
7 wk after
Purple-top vervain
Verbena bonariensis
7 Feb – 7 Mar
24 Apr
8-12 wk
2 May
19 Jun
1 wk after
Cardoon
Cynara cardunculus
20 Feb – 20 Mar
25 Mar
8-12 wk
15 May
20 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
12 Feb – 12 Mar
12 Mar
8-12 wk
7 May
7 May
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
12 – 26 Mar
26 Mar
6-8 wk
7 May
7 May
2 wk after
Corn poppy
Papaver rhoeas
26 Apr
19 Jul
0 wk
19 Apr
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
1 Feb – 1 Mar
14 May
8-12 wk
26 Apr
9 Jul
0 wk
1 May
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
6 – 20 Mar
8 Apr
8-10 wk
15 May
3 Jun
3 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Mar
4 Jun
5-8 wk
26 Apr
9 Jul
0 wk
Stock
Matthiola incana
1 – 15 Mar
7 Jun
6-8 wk
26 Apr
19 Jul
0 wk
6 May
9 Jul
1 wk after
Wormwood
Artemisia absinthium
1 – 15 Mar
8 May
6-8 wk
26 Apr
19 Jun
0 wk
6 May
9 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
26 Mar – 9 Apr
4 Apr
4-6 wk
7 May
2 wk after
Garden pansy
Viola × wittrockiana
15 Feb – 1 Mar
24 May
8-10 wk
26 Apr
19 Jul
0 wk
1 May
9 Jul
1 wk after
Petunia
Petunia
Fleece
12 Feb – 12 Mar
29 Mar
8-12 wk
7 May
24 May
2 wk after
Sweet Scabious
Scabiosa atropurpurea
7 – 21 Mar
8 May
6-8 wk
2 May
19 Jun
1 wk after
1 Jun
9 Jun
5 wk after
Common zinnia
Zinnia elegans
Fleece
26 Mar – 9 Apr
19 Apr
4-6 wk
7 May
17 May
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
2 – 16 Apr
26 Apr
3-5 wk
7 May
17 May
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
26 Mar – 9 Apr
28 Apr
4-6 wk
7 May
26 May
2 wk after
17 May
3 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
20 Feb – 20 Mar
11 Apr
8-12 wk
15 May
6 Jun
3 wk after
Bee balm
Monarda didyma
1 Feb – 1 Mar
24 Apr
8-12 wk
26 Apr
19 Jun
0 wk
17 May
9 Jun
3 wk after
Yarrow
Achillea millefolium
1 – 15 Mar
8 Apr
6-8 wk
26 Apr
20 May
0 wk
6 May
10 May
1 wk after
Safflower
Carthamus tinctorius
26 Apr
19 Jun
0 wk
19 Apr
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Mar
28 May
6-8 wk
26 Apr
9 Jul
0 wk
18 Mar
29 Jun
6 wk before
Bishop's flower
Ammi majus
15 – 29 Mar
11 Jun
4-6 wk
26 Apr
9 Jul
0 wk
6 May
29 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Feb
25 Feb
10-12 wk
7 May
2 wk after
Sunflower
Helianthus annuus
17 – 24 Apr
11 Jun
3-4 wk
15 May
2 Jul
3 wk after
17 May
22 Jun
3 wk after
China aster
Callistephus chinensis
20 Mar – 3 Apr
31 May
6-8 wk
15 May
12 Jul
3 wk after
1 Jun
2 Jul
5 wk after
Annual phlox
Phlox drummondii
12 – 26 Mar
26 Mar
6-8 wk
7 May
7 May
2 wk after
1 Jun
5 wk after
Hollyhock
Alcea rosea
1 – 15 Mar
6-8 wk
26 Apr
0 wk
6 May
1 wk after
Alpine delphinium
Delphinium elatum
1 Feb – 1 Mar
24 Apr
8-12 wk
26 Apr
19 Jun
0 wk
17 May
9 Jun
3 wk after
African marigold
Tagetes erecta
Fleece
12 – 26 Mar
22 Apr
6-8 wk
7 May
3 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
7 – 21 Mar
21 May
6-8 wk
2 May
2 Jul
1 wk after
1 Jun
22 Jun
5 wk after
Wood sage
Salvia nemorosa
15 Feb – 1 Mar
14 Apr
8-10 wk
26 Apr
9 Jun
0 wk
17 May
30 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
26 Feb – 26 Mar
5 Apr
6-10 wk
7 May
17 May
2 wk after
California goldenpoppy
Eschscholzia californica
26 Apr
19 Jul
0 wk
19 Apr
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
6 – 20 Mar
20 Apr
8-10 wk
15 May
15 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Mar
8 May
6-8 wk
26 Apr
19 Jun
0 wk
6 May
9 Jun
1 wk after