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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 120 days 1 Jun – 29 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)
13 – 27 Apr
16 Jun
5-7 wk
1 Jun
21 Jul
0 wk
25 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
28 Jun
4-6 wk
1 Jun
26 Jul
0 wk
25 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
15 Mar – 12 Apr
14 Apr
8-12 wk
7 Jun
9 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
20 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
17 – 24 May
8 Jun
3-4 wk
14 Jun
29 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
29 May – 5 Jun
6 Jun
4-5 wk
3 Jul
4 Jul
5 wk after
7 Jul
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
9 Mar – 6 Apr
30 Mar
8-12 wk
1 Jun
0 wk
11 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 May
14 Jun
1 wk before
25 May
4 Jun
1 wk before
Maize
Zea mays
Fleece
10 – 17 May
29 May
3-4 wk
7 Jun
19 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
5 Jul
3-4 wk
3 Jun
26 Jul
0 wk
11 Jun
16 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
6 Jul
0 wk
20 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
20 May
6 Jul
2 wk before
Potato
Solanum tuberosum
25 Apr – 9 May
1 Jun
4-6 wk
6 Jun
29 Jun
1 wk after
6 Jun
19 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
21 Jun
5-7 wk
1 Jun
26 Jul
0 wk
25 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
5 – 12 Jun
13 Jun
3-4 wk
3 Jul
4 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
13 Jun
3-4 wk
3 Jun
4 Jul
0 wk
11 Jun
24 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
10 Jul
3-4 wk
1 Jun
31 Jul
0 wk
25 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
22 Apr – 6 May
2 Jun
2-4 wk
20 May
16 Jun
2 wk before
20 May
6 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 May
14 Jun
1 wk before
25 May
4 Jun
1 wk before
Spinach
Spinacia oleracea
4 – 11 May
25 Jul
3-4 wk
1 Jun
15 Aug
0 wk
14 May
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
12 – 26 Apr
8 May
6-8 wk
7 Jun
19 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
17 – 31 May
15 Jun
2-4 wk
14 Jun
29 Jun
2 wk after
7 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
25 Jun
3-4 wk
1 Jun
16 Jul
0 wk
25 May
6 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
22 May – 5 Jun
22 May
4-6 wk
3 Jul
5 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
21 May
8-10 wk
1 Jun
16 Jul
0 wk
22 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
25 May
26 Jul
1 wk before
Wild chives
Allium schoenoprasum
6 – 20 Apr
4 Jun
6-8 wk
1 Jun
16 Jul
0 wk
25 May
6 Jul
1 wk before
Spearmint
Mentha spicata
9 Mar – 6 Apr
21 May
8-12 wk
1 Jun
16 Jul
0 wk
22 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
1 Jun
15 Aug
0 wk
11 Jun
5 Aug
1 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
6 May
8-10 wk
3 Jun
1 Jul
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
11 May
8-10 wk
1 Jun
6 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
25 May
6-8 wk
1 Jun
6 Jul
0 wk
22 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
25 May
6-8 wk
1 Jun
6 Jul
0 wk
25 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
7 Apr
10-14 wk
3 Jun
16 Jun
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
5 – 12 Jun
3-4 wk
3 Jul
5 wk after
Cornflower
Centaurea cyanus
1 Jun
16 Jul
0 wk
25 May
6 Jul
1 wk before
Statice
Limonium sinuatum
5 – 19 Apr
3 May
8-10 wk
14 Jun
28 Jun
2 wk after
Sweet William
Dianthus barbatus
6 – 20 Apr
6-8 wk
1 Jun
0 wk
6 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
19 Apr – 3 May
17 May
6-8 wk
14 Jun
28 Jun
2 wk after
9 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
20 May
6-8 wk
12 Jun
1 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
27 Apr – 25 May
3 Jun
4-8 wk
22 Jun
1 Jul
3 wk after
22 Jun
3 wk after
Foxglove
Digitalis purpurea
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
11 Jun
1 wk after
Busy lizzie
Impatiens walleriana
10 Apr – 8 May
23 Jun
8-12 wk
3 Jul
18 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
19 Apr – 3 May
27 May
6-8 wk
14 Jun
8 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
3 – 17 May
6 May
4-6 wk
14 Jun
2 wk after
Chinese lantern
Physalis alkekengi
25 Mar – 8 Apr
21 Apr
8-10 wk
3 Jun
16 Jun
0 wk
Love in a mist
Nigella damascena
1 Jun
1 Jul
0 wk
25 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
19 Apr – 3 May
7 May
6-8 wk
14 Jun
18 Jun
2 wk after
9 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
21 Apr
8-12 wk
3 Jun
16 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
15 Mar – 12 Apr
22 Mar
8-12 wk
7 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
22 Mar – 19 Apr
28 Apr
8-12 wk
14 Jun
23 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
19 Apr – 3 May
12 May
6-8 wk
14 Jun
23 Jun
2 wk after
Corn poppy
Papaver rhoeas
1 Jun
16 Jul
0 wk
25 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
11 May
8-12 wk
1 Jun
6 Jul
0 wk
6 Jun
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
24 Apr – 8 May
13 May
8-10 wk
3 Jul
8 Jul
5 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
1 Jun
5-8 wk
1 Jun
6 Jul
0 wk
Stock
Matthiola incana
6 – 20 Apr
4 Jun
6-8 wk
1 Jun
16 Jul
0 wk
11 Jun
6 Jul
1 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
5 May
6-8 wk
1 Jun
16 Jun
0 wk
11 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
3 – 17 May
21 May
4-6 wk
14 Jun
18 Jun
2 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
21 May
8-10 wk
1 Jun
16 Jul
0 wk
6 Jun
6 Jul
1 wk after
Petunia
Petunia
22 Mar – 19 Apr
3 May
8-12 wk
14 Jun
28 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
5 May
6-8 wk
3 Jun
16 Jun
0 wk
7 Jul
5 wk after
Common zinnia
Zinnia elegans
3 – 17 May
5 Jun
4-6 wk
14 Jun
3 Jul
2 wk after
Common morning glory
Ipomoea purpurea
29 May – 12 Jun
29 May
3-5 wk
3 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
3 – 17 May
3 Jun
4-6 wk
14 Jun
1 Jul
2 wk after
7 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
10 Apr – 8 May
28 May
8-12 wk
3 Jul
23 Jul
5 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
21 Apr
8-12 wk
1 Jun
16 Jun
0 wk
22 Jun
3 wk after
Yarrow
Achillea millefolium
6 – 20 Apr
6-8 wk
1 Jun
0 wk
11 Jun
1 wk after
Safflower
Carthamus tinctorius
1 Jun
16 Jun
0 wk
25 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
25 May
6-8 wk
1 Jun
6 Jul
0 wk
23 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
8 Jun
4-6 wk
1 Jun
6 Jul
0 wk
11 Jun
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
22 Mar – 5 Apr
2 Apr
10-12 wk
14 Jun
2 wk after
Sunflower
Helianthus annuus
17 – 24 May
15 Jun
3-4 wk
14 Jun
6 Jul
2 wk after
22 Jun
26 Jun
3 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
4 Jun
6-8 wk
14 Jun
16 Jul
2 wk after
7 Jul
5 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
27 May
6-8 wk
7 Jun
8 Jul
1 wk after
7 Jul
5 wk after
Hollyhock
Alcea rosea
6 – 20 Apr
6-8 wk
1 Jun
0 wk
11 Jun
1 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
21 Apr
8-12 wk
1 Jun
16 Jun
0 wk
22 Jun
3 wk after
African marigold
Tagetes erecta
19 Apr – 3 May
27 May
6-8 wk
14 Jun
8 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
25 May
6-8 wk
3 Jun
6 Jul
0 wk
7 Jul
5 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
11 Apr
8-10 wk
1 Jun
6 Jun
0 wk
22 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
24 Apr – 22 May
8 May
6-10 wk
3 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
16 Jul
0 wk
25 May
6 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
9 May
8-10 wk
14 Jun
4 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
5 May
6-8 wk
1 Jun
16 Jun
0 wk
11 Jun
1 wk after