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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 3 of 4 years · 20 years of data
Frost-free season 98 days 24 May – 30 Aug
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)
5 – 19 Apr
15 Jun
5-7 wk
24 May
20 Jul
0 wk
28 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
27 Jun
4-6 wk
24 May
25 Jul
0 wk
28 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
20 Mar
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
10 Jun
5-7 wk
24 May
15 Jul
0 wk
24 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
2 – 9 May
29 May
3-4 wk
30 May
19 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
2 – 9 May
26 May
4-5 wk
6 Jun
23 Jun
2 wk after
28 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
1 – 29 Mar
24 Mar
8-12 wk
24 May
0 wk
3 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
29 May
1 wk after
28 May
1 wk after
Maize
Zea mays
Greenhouse
26 Apr – 3 May
19 May
3-4 wk
24 May
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
22 Jun
3-4 wk
26 May
13 Jul
0 wk
14 Jun
3 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
29 Jun
0 wk
24 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
10 Jun
5-7 wk
24 May
15 Jul
0 wk
24 May
5 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
14 May
4-6 wk
9 Jun
11 Jun
2 wk after
9 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
14 Jun
5-7 wk
24 May
19 Jul
0 wk
28 May
9 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
9 – 16 May
3 Jun
3-4 wk
6 Jun
24 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
19 May
3-4 wk
26 May
9 Jun
0 wk
14 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
22 Jun
4-6 wk
24 May
20 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
3 Jul
3-4 wk
24 May
24 Jul
0 wk
28 May
14 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
22 Jun
4-6 wk
24 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
21 May
2-4 wk
24 May
4 Jun
0 wk
24 May
25 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 May
29 May
1 wk after
28 May
1 wk after
Spinach
Spinacia oleracea
26 Apr – 3 May
24 Jul
3-4 wk
24 May
14 Aug
0 wk
20 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
25 Jun – 9 Jul
4-6 wk
6 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
29 Mar – 12 Apr
28 Apr
6-8 wk
24 May
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
2 – 16 May
5 Jun
2-4 wk
30 May
19 Jun
1 wk after
28 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
22 Jun
4-6 wk
24 May
20 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
18 Jun
3-4 wk
24 May
9 Jul
0 wk
28 May
29 Jun
1 wk after

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
25 Apr – 9 May
12 May
4-6 wk
6 Jun
9 Jun
2 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
14 May
8-10 wk
24 May
9 Jul
0 wk
28 Jun
29 Jun
5 wk after
Dill
Anethum graveolens
28 May
13 Jul
1 wk after
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
3 Jun
6-8 wk
24 May
15 Jul
0 wk
28 May
5 Jul
1 wk after
Spearmint
Mentha spicata
1 – 29 Mar
20 May
8-12 wk
24 May
15 Jul
0 wk
28 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
24 May
2 Aug
0 wk
14 Jun
23 Jul
3 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
5 May
8-10 wk
26 May
30 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
10 May
8-10 wk
24 May
5 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
24 May
6-8 wk
24 May
5 Jul
0 wk
28 Jun
5 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
24 May
6-8 wk
24 May
5 Jul
0 wk
28 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
18 Mar
10-14 wk
26 May
27 May
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Fleece
9 – 16 May
19 May
3-4 wk
6 Jun
9 Jun
2 wk after
Cornflower
Centaurea cyanus
24 May
15 Jul
0 wk
28 May
5 Jul
1 wk after
Statice
Limonium sinuatum
28 Mar – 11 Apr
15 Apr
8-10 wk
6 Jun
10 Jun
2 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
9 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
29 Apr
6-8 wk
6 Jun
10 Jun
2 wk after
6 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
3 May
6-8 wk
4 Jun
14 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 May
17 May
4-8 wk
28 Jun
5 wk after
28 Jun
5 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
14 Jun
3 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
30 May
8-12 wk
25 Jun
25 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
9 May
6-8 wk
6 Jun
20 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
8 Apr
8-10 wk
26 May
3 Jun
0 wk
Love in a mist
Nigella damascena
24 May
24 Jun
0 wk
28 May
14 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
29 Apr
6-8 wk
30 May
10 Jun
1 wk after
22 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
8 Apr
8-12 wk
26 May
3 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
1 – 29 Mar
21 Mar
8-12 wk
24 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
7 Mar – 4 Apr
19 Apr
8-12 wk
30 May
14 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
4 – 18 Apr
3 May
6-8 wk
30 May
14 Jun
1 wk after
Corn poppy
Papaver rhoeas
24 May
9 Jul
0 wk
28 May
29 Jun
1 wk after
Snapdragon
Antirrhinum majus
1 – 29 Mar
4 May
8-12 wk
24 May
29 Jun
0 wk
9 Jun
19 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
28 Mar – 11 Apr
5 May
8-10 wk
6 Jun
30 Jun
2 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
31 May
5-8 wk
24 May
5 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
28 May
6-8 wk
24 May
9 Jul
0 wk
14 Jun
29 Jun
3 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
4 May
6-8 wk
24 May
15 Jun
0 wk
14 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
12 May
4-6 wk
30 May
9 Jun
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
20 May
8-10 wk
24 May
15 Jul
0 wk
9 Jun
5 Jul
2 wk after
Petunia
Petunia
14 Mar – 11 Apr
15 Apr
8-12 wk
6 Jun
10 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
22 Apr
6-8 wk
26 May
3 Jun
0 wk
12 Jul
7 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
12 May
4-6 wk
6 Jun
9 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
2 – 16 May
19 May
3-5 wk
6 Jun
9 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
2 wk after
12 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
14 Mar – 11 Apr
19 May
8-12 wk
6 Jun
14 Jul
2 wk after
Bee balm
Monarda didyma
1 – 29 Mar
14 Apr
8-12 wk
24 May
9 Jun
0 wk
28 Jun
5 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
4 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Safflower
Carthamus tinctorius
24 May
15 Jun
0 wk
28 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
24 May
6-8 wk
24 May
5 Jul
0 wk
6 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
1 Jun
4-6 wk
24 May
29 Jun
0 wk
14 Jun
19 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
26 Mar
10-12 wk
30 May
4 Jun
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
26 May
3-4 wk
6 Jun
16 Jun
2 wk after
28 Jun
5 wk after
China aster
Callistephus chinensis
11 – 25 Apr
15 May
6-8 wk
6 Jun
26 Jun
2 wk after
12 Jul
7 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
9 May
6-8 wk
30 May
20 Jun
1 wk after
12 Jul
7 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
14 Apr
8-12 wk
24 May
9 Jun
0 wk
28 Jun
5 wk after
African marigold
Tagetes erecta
11 – 25 Apr
9 May
6-8 wk
6 Jun
20 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
5 May
6-8 wk
26 May
16 Jun
0 wk
12 Jul
7 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
4 Apr
8-10 wk
24 May
30 May
0 wk
28 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
28 Mar – 25 Apr
28 Apr
6-10 wk
6 Jun
9 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
24 May
6 Jul
0 wk
28 May
26 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
21 Mar – 4 Apr
28 Apr
8-10 wk
30 May
23 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
4 May
6-8 wk
24 May
15 Jun
0 wk
14 Jun
3 wk after