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Method
Rel. frost
Last spring frost (0°C) 8 May Frost 3 of 4 years · 20 years of data
Frost-free season 136 days 8 May – 21 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)
20 Mar – 3 Apr
13 Jun
5-7 wk
8 May
18 Jul
0 wk
9 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
27 Mar – 10 Apr
25 Jun
4-6 wk
8 May
23 Jul
0 wk
9 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
24 Feb – 24 Mar
31 Mar
8-12 wk
19 May
26 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Mar – 3 Apr
8 Jun
5-7 wk
8 May
13 Jul
0 wk
8 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
30 Apr – 7 May
25 May
3-4 wk
28 May
15 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
7 – 14 May
19 May
4-5 wk
11 Jun
16 Jun
5 wk after
20 Jun
6 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)
13 Feb – 13 Mar
24 Mar
8-12 wk
8 May
19 May
0 wk
21 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 May
8 Jun
0 wk
9 May
29 May
0 wk
Maize
Zea mays
Fleece
21 – 28 Apr
15 May
3-4 wk
19 May
5 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 Apr
28 Jun
3-4 wk
14 May
19 Jul
1 wk after
21 May
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 May
3 Jul
0 wk
8 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Mar – 3 Apr
8 Jun
5-7 wk
8 May
13 Jul
0 wk
8 May
3 Jul
0 wk
Potato
Solanum tuberosum
6 – 20 Apr
21 May
4-6 wk
18 May
18 Jun
1 wk after
18 May
8 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Mar – 3 Apr
18 Jun
5-7 wk
8 May
23 Jul
0 wk
9 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
14 – 21 May
30 May
3-4 wk
11 Jun
20 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
16 – 23 Apr
26 May
3-4 wk
14 May
16 Jun
1 wk after
21 May
6 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
27 Mar – 10 Apr
20 Jun
4-6 wk
8 May
18 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Apr
7 Jul
3-4 wk
8 May
28 Jul
0 wk
9 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Mar – 10 Apr
20 Jun
4-6 wk
8 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Apr
28 May
2-4 wk
8 May
11 Jun
0 wk
8 May
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 May
8 Jun
0 wk
9 May
29 May
0 wk
Spinach
Spinacia oleracea
10 – 17 Apr
22 Jul
3-4 wk
8 May
12 Aug
0 wk
5 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
2 – 16 Jun
4-6 wk
14 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
24 Mar – 7 Apr
24 Apr
6-8 wk
19 May
5 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
30 Apr – 14 May
1 Jun
2-4 wk
28 May
15 Jun
3 wk after
20 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
27 Mar – 10 Apr
20 Jun
4-6 wk
8 May
18 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Apr
22 Jun
3-4 wk
8 May
13 Jul
0 wk
9 May
3 Jul
0 wk

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