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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 4 years · 20 years of data
Frost-free season 129 days 24 May – 30 Sep
Probability that frost is over

75% = 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
14 Jun
5-7 wk
24 May
19 Jul
0 wk
28 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
26 Jun
4-6 wk
24 May
24 Jul
0 wk
28 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
16 Mar – 13 Apr
13 Apr
8-12 wk
8 Jun
8 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
9 Jun
5-7 wk
24 May
14 Jul
0 wk
24 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
23 – 30 May
7 Jun
3-4 wk
20 Jun
28 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
1 – 8 Jun
4-5 wk
6 Jul
6 wk after
12 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
28 Mar
8-12 wk
24 May
0 wk
14 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
12 Jun
1 wk after
28 May
2 Jun
1 wk after
Maize
Zea mays
23 – 30 May
3-4 wk
20 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
3 Jul
3-4 wk
1 Jun
24 Jul
1 wk after
14 Jun
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
4 Jul
0 wk
24 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
9 Jun
5-7 wk
24 May
14 Jul
0 wk
24 May
4 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
24 May
4-6 wk
9 Jun
21 Jun
2 wk after
9 Jun
11 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
19 Jun
5-7 wk
24 May
24 Jul
0 wk
28 May
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
8 – 15 Jun
12 Jun
3-4 wk
6 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
2 Jun
3-4 wk
1 Jun
23 Jun
1 wk after
14 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
8 Jul
3-4 wk
24 May
29 Jul
0 wk
28 May
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
31 May
2-4 wk
24 May
14 Jun
0 wk
24 May
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 May
12 Jun
1 wk after
28 May
2 Jun
1 wk after
Spinach
Spinacia oleracea
26 Apr – 3 May
23 Jul
3-4 wk
24 May
13 Aug
0 wk
20 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
25 Jun – 9 Jul
4-6 wk
6 Aug
11 wk after
Garden tomato
Solanum lycopersicum
25 Apr – 9 May
6-8 wk
20 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
23 May – 6 Jun
14 Jun
2-4 wk
20 Jun
28 Jun
4 wk after
12 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
21 Jun
4-6 wk
24 May
19 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
23 Jun
3-4 wk
24 May
14 Jul
0 wk
28 May
4 Jul
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
25 May – 8 Jun
4-6 wk
6 Jul
6 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
19 May
8-10 wk
24 May
14 Jul
0 wk
28 Jun
4 Jul
5 wk after
Dill
Anethum graveolens
28 May
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
2 Jun
6-8 wk
24 May
14 Jul
0 wk
28 May
4 Jul
1 wk after
Spearmint
Mentha spicata
1 – 29 Mar
19 May
8-12 wk
24 May
14 Jul
0 wk
28 Jun
4 Jul
5 wk after
Coriander
Coriandrum sativum
24 May
13 Aug
0 wk
14 Jun
3 Aug
3 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
4 May
8-10 wk
1 Jun
29 Jun
1 wk after
Common thyme
Thymus vulgaris
15 – 29 Mar
9 May
8-10 wk
24 May
4 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
0 wk
28 Jun
5 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
0 wk
28 May
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
5 Apr
10-14 wk
1 Jun
14 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
8 – 15 Jun
3-4 wk
6 Jul
6 wk after
Cornflower
Centaurea cyanus
24 May
14 Jul
0 wk
28 May
4 Jul
1 wk after
Statice
Limonium sinuatum
11 – 25 Apr
29 Apr
8-10 wk
20 Jun
24 Jun
4 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
25 Apr – 9 May
13 May
6-8 wk
20 Jun
24 Jun
4 wk after
6 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
20 May
6-8 wk
12 Jun
1 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 May
3 Jun
4-8 wk
28 Jun
1 Jul
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
13 Apr – 11 May
17 Jun
8-12 wk
6 Jul
12 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
25 Apr – 9 May
23 May
6-8 wk
20 Jun
4 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
9 – 23 May
4-6 wk
20 Jun
4 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
19 Apr
8-10 wk
1 Jun
14 Jun
1 wk after
Love in a mist
Nigella damascena
24 May
29 Jun
0 wk
28 May
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
25 Apr – 9 May
3 May
6-8 wk
20 Jun
4 wk after
6 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
19 Apr
8-12 wk
1 Jun
14 Jun
1 wk after
Cardoon
Cynara cardunculus
28 Mar – 25 Apr
8-12 wk
20 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
28 Mar – 25 Apr
22 Apr
8-12 wk
20 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
25 Apr – 9 May
6 May
6-8 wk
20 Jun
4 wk after
Corn poppy
Papaver rhoeas
24 May
14 Jul
0 wk
28 May
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
1 – 29 Mar
9 May
8-12 wk
24 May
4 Jul
0 wk
9 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
27 Apr – 11 May
9 May
8-10 wk
6 Jul
6 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
30 May
5-8 wk
24 May
4 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
2 Jun
6-8 wk
24 May
14 Jul
0 wk
14 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
3 May
6-8 wk
24 May
14 Jun
0 wk
14 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
9 – 23 May
15 May
4-6 wk
20 Jun
4 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
19 May
8-10 wk
24 May
14 Jul
0 wk
9 Jun
4 Jul
2 wk after
Petunia
Petunia
28 Mar – 25 Apr
29 Apr
8-12 wk
20 Jun
24 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
3 May
6-8 wk
1 Jun
14 Jun
1 wk after
12 Jul
7 wk after
Common zinnia
Zinnia elegans
9 – 23 May
30 May
4-6 wk
20 Jun
27 Jun
4 wk after
Common morning glory
Ipomoea purpurea
1 – 15 Jun
3-5 wk
6 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
9 – 23 May
3 Jun
4-6 wk
20 Jun
1 Jul
4 wk after
12 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
13 Apr – 11 May
22 May
8-12 wk
6 Jul
17 Jul
6 wk after
Bee balm
Monarda didyma
1 – 29 Mar
19 Apr
8-12 wk
24 May
14 Jun
0 wk
28 Jun
5 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
3 Apr
6-8 wk
24 May
0 wk
14 Jun
3 wk after
Safflower
Carthamus tinctorius
24 May
14 Jun
0 wk
28 May
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
23 May
6-8 wk
24 May
4 Jul
0 wk
6 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
6 Jun
4-6 wk
24 May
4 Jul
0 wk
14 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
28 Mar – 11 Apr
2 Apr
10-12 wk
20 Jun
4 wk after
Sunflower
Helianthus annuus
23 – 30 May
13 Jun
3-4 wk
20 Jun
4 Jul
4 wk after
28 Jun
5 wk after
China aster
Callistephus chinensis
25 Apr – 9 May
2 Jun
6-8 wk
20 Jun
14 Jul
4 wk after
12 Jul
7 wk after
Annual phlox
Phlox drummondii
13 – 27 Apr
23 May
6-8 wk
8 Jun
4 Jul
2 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
19 Apr
8-12 wk
24 May
14 Jun
0 wk
28 Jun
5 wk after
African marigold
Tagetes erecta
25 Apr – 9 May
23 May
6-8 wk
20 Jun
4 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
23 May
6-8 wk
1 Jun
4 Jul
1 wk after
12 Jul
7 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
9 Apr
8-10 wk
24 May
4 Jun
0 wk
28 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
27 Apr – 25 May
7 May
6-10 wk
6 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
24 May
14 Jul
0 wk
28 May
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
11 – 25 Apr
3 May
8-10 wk
20 Jun
28 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
3 May
6-8 wk
24 May
14 Jun
0 wk
14 Jun
3 wk after