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Method
Rel. frost
Last spring frost (0°C) 8 May Frost 9 of 10 years · 20 years of data
Frost-free season 125 days 8 May – 10 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)
20 Mar – 3 Apr
9 Jun
5-7 wk
8 May
14 Jul
0 wk
9 May
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
27 Mar – 10 Apr
21 Jun
4-6 wk
8 May
19 Jul
0 wk
9 May
9 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
23 Feb – 23 Mar
8-12 wk
18 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Mar – 3 Apr
4 Jun
5-7 wk
8 May
9 Jul
0 wk
8 May
29 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
20 – 27 Apr
3-4 wk
18 May
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
23 – 30 Apr
30 May
4-5 wk
28 May
27 Jun
3 wk after
2 Jun
17 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
21 – 28 May
3-4 wk
18 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
13 Feb – 13 Mar
5 Mar
8-12 wk
8 May
0 wk
14 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
29 Apr
30 May
1 wk before
29 Apr
20 May
1 wk before
Maize
Zea mays
Season too short
12 – 19 Apr
3-4 wk
10 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 Apr
26 Jun
3-4 wk
13 May
17 Jul
1 wk after
21 May
7 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 May
29 Jun
0 wk
8 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Mar – 3 Apr
4 Jun
5-7 wk
8 May
9 Jul
0 wk
8 May
29 Jun
0 wk
Potato
Solanum tuberosum
Greenhouse
24 Mar – 7 Apr
12 May
4-6 wk
5 May
9 Jun
0 wk
5 May
30 May
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Mar – 3 Apr
14 Jun
5-7 wk
8 May
19 Jul
0 wk
9 May
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
20 – 27 Apr
3-4 wk
18 May
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
10 – 17 Apr
29 Apr
3-4 wk
8 May
20 May
0 wk
14 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
27 Mar – 10 Apr
16 Jun
4-6 wk
8 May
14 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Apr
3 Jul
3-4 wk
8 May
24 Jul
0 wk
9 May
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Mar – 10 Apr
16 Jun
4-6 wk
8 May
14 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Greenhouse
25 Mar – 8 Apr
22 May
2-4 wk
22 Apr
5 Jun
2 wk before
22 Apr
26 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
29 Apr
30 May
1 wk before
29 Apr
20 May
1 wk before
Spinach
Spinacia oleracea
10 – 17 Apr
18 Jul
3-4 wk
8 May
8 Aug
0 wk
5 May
29 Jul
0 wk
Sweet potato
Ipomoea batatas
2 – 16 Jun
4-6 wk
14 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
15 – 29 Mar
6-8 wk
10 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
12 – 26 Apr
2-4 wk
10 May
0 wk
21 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
27 Mar – 10 Apr
16 Jun
4-6 wk
8 May
14 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Apr
18 Jun
3-4 wk
8 May
9 Jul
0 wk
9 May
29 Jun
0 wk

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
6 – 20 Apr
4-6 wk
18 May
1 wk after
Lemon balm
Melissa officinalis
27 Feb – 13 Mar
14 May
8-10 wk
8 May
9 Jul
0 wk
2 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
9 May
17 Jul
0 wk
Wild chives
Allium schoenoprasum
13 – 27 Mar
28 May
6-8 wk
8 May
9 Jul
0 wk
9 May
29 Jun
0 wk
Spearmint
Mentha spicata
13 Feb – 13 Mar
14 May
8-12 wk
8 May
9 Jul
0 wk
2 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
8 May
6 Aug
0 wk
21 May
27 Jul
2 wk after
Garden sage
Salvia officinalis
4 – 18 Mar
29 Apr
8-10 wk
13 May
24 Jun
1 wk after
Common thyme
Thymus vulgaris
27 Feb – 13 Mar
4 May
8-10 wk
8 May
29 Jun
0 wk
Oregano
Origanum vulgare
13 – 27 Mar
18 May
6-8 wk
8 May
29 Jun
0 wk
2 Jun
19 Jun
4 wk after
Parsley
Petroselinum crispum
13 – 27 Mar
18 May
6-8 wk
8 May
29 Jun
0 wk
9 May
19 Jun
0 wk
Rosemary
Salvia rosmarinus
4 Feb – 4 Mar
28 Mar
10-14 wk
13 May
6 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
Season too short
20 – 27 Apr
3-4 wk
18 May
1 wk after
Cornflower
Centaurea cyanus
8 May
9 Jul
0 wk
9 May
29 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
1 – 15 Mar
1 Apr
8-10 wk
10 May
27 May
0 wk
Sweet William
Dianthus barbatus
13 – 27 Mar
6-8 wk
8 May
0 wk
18 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
15 – 29 Mar
15 Apr
6-8 wk
10 May
27 May
0 wk
9 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
13 – 27 Mar
23 Apr
6-8 wk
8 May
4 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
19 Mar – 16 Apr
7 May
4-8 wk
14 May
4 Jun
1 wk after
14 May
25 May
1 wk after
Foxglove
Digitalis purpurea
27 Feb – 13 Mar
8-10 wk
8 May
0 wk
21 May
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
23 Feb – 23 Mar
17 May
8-12 wk
18 May
12 Jul
1 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
15 – 29 Mar
25 Apr
6-8 wk
10 May
6 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
16 – 30 Apr
4-6 wk
28 May
3 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Mar
12 Apr
8-10 wk
13 May
7 Jun
1 wk after
Love in a mist
Nigella damascena
8 May
24 Jun
0 wk
9 May
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
15 – 29 Mar
5 Apr
6-8 wk
10 May
17 May
0 wk
9 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
18 Feb – 18 Mar
12 Apr
8-12 wk
13 May
7 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
15 Feb – 15 Mar
15 Mar
8-12 wk
10 May
10 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
23 Feb – 23 Mar
8-12 wk
18 May
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
23 Mar – 6 Apr
6-8 wk
18 May
1 wk after
Corn poppy
Papaver rhoeas
8 May
9 Jul
0 wk
9 May
29 Jun
0 wk
Snapdragon
Antirrhinum majus
13 Feb – 13 Mar
4 May
8-12 wk
8 May
29 Jun
0 wk
18 May
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
9 – 23 Mar
11 Apr
8-10 wk
18 May
6 Jun
1 wk after
Sweet pea
Lathyrus odoratus
13 Mar – 3 Apr
25 May
5-8 wk
8 May
29 Jun
0 wk
Stock
Matthiola incana
13 – 27 Mar
28 May
6-8 wk
8 May
9 Jul
0 wk
21 May
29 Jun
2 wk after
Wormwood
Artemisia absinthium
13 – 27 Mar
28 Apr
6-8 wk
8 May
9 Jun
0 wk
21 May
30 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
6 – 20 Apr
4-6 wk
18 May
1 wk after
Garden pansy
Viola × wittrockiana
27 Feb – 13 Mar
14 May
8-10 wk
8 May
9 Jul
0 wk
18 May
29 Jun
1 wk after
Petunia
Petunia
Greenhouse
15 Feb – 15 Mar
1 Apr
8-12 wk
10 May
27 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
18 Mar – 1 Apr
26 Apr
6-8 wk
13 May
7 Jun
1 wk after
20 Jun
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
29 Mar – 12 Apr
29 Apr
4-6 wk
10 May
27 May
0 wk
Common morning glory
Ipomoea purpurea
Season too short
13 – 27 Apr
3-5 wk
18 May
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
29 Mar – 12 Apr
7 May
4-6 wk
10 May
4 Jun
0 wk
21 May
25 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
5 Mar – 2 Apr
8-12 wk
28 May
3 wk after
Bee balm
Monarda didyma
13 Feb – 13 Mar
14 Apr
8-12 wk
8 May
9 Jun
0 wk
2 Jun
4 wk after
Yarrow
Achillea millefolium
13 – 27 Mar
29 Mar
6-8 wk
8 May
10 May
0 wk
21 May
2 wk after
Safflower
Carthamus tinctorius
8 May
9 Jun
0 wk
9 May
30 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
13 – 27 Mar
18 May
6-8 wk
8 May
29 Jun
0 wk
22 Apr
19 Jun
2 wk before
Bishop's flower
Ammi majus
27 Mar – 10 Apr
1 Jun
4-6 wk
8 May
29 Jun
0 wk
21 May
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Feb – 9 Mar
10-12 wk
18 May
1 wk after
Sunflower
Helianthus annuus
30 Apr – 7 May
5 Jun
3-4 wk
28 May
26 Jun
3 wk after
2 Jun
16 Jun
4 wk after
China aster
Callistephus chinensis
2 – 16 Apr
25 May
6-8 wk
28 May
6 Jul
3 wk after
20 Jun
26 Jun
6 wk after
Annual phlox
Phlox drummondii
Greenhouse
13 – 27 Mar
25 Apr
6-8 wk
8 May
6 Jun
0 wk
21 May
27 May
2 wk after
Hollyhock
Alcea rosea
13 – 27 Mar
6-8 wk
8 May
0 wk
21 May
2 wk after
Alpine delphinium
Delphinium elatum
13 Feb – 13 Mar
14 Apr
8-12 wk
8 May
9 Jun
0 wk
2 Jun
4 wk after
African marigold
Tagetes erecta
Greenhouse
15 – 29 Mar
25 Apr
6-8 wk
10 May
6 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
18 Mar – 1 Apr
15 May
6-8 wk
13 May
26 Jun
1 wk after
20 Jun
6 wk after
Wood sage
Salvia nemorosa
27 Feb – 13 Mar
4 Apr
8-10 wk
8 May
30 May
0 wk
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
9 Mar – 6 Apr
6-10 wk
18 May
1 wk after
California goldenpoppy
Eschscholzia californica
8 May
7 Jul
0 wk
9 May
27 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
9 – 23 Mar
2 May
8-10 wk
18 May
27 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Mar
28 Apr
6-8 wk
8 May
9 Jun
0 wk
21 May
30 May
2 wk after