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Method
Rel. frost
Last spring frost (0°C) 5 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 113 days 5 Jun – 26 Sep
Probability that frost is over

90% = 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)
17 Apr – 1 May
16 Jun
5-7 wk
5 Jun
21 Jul
0 wk
9 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
24 Apr – 8 May
28 Jun
4-6 wk
5 Jun
26 Jul
0 wk
9 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 Apr – 1 May
11 Jun
5-7 wk
5 Jun
16 Jul
0 wk
5 Jun
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
14 – 21 May
3-4 wk
11 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
14 – 21 May
8 Jun
4-5 wk
18 Jun
6 Jul
2 wk after
10 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Mar – 10 Apr
31 Mar
8-12 wk
5 Jun
0 wk
26 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 Jun
15 Jun
1 wk after
9 Jun
1 wk after
Maize
Zea mays
Season too short
8 – 15 May
3-4 wk
5 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
5 Jul
3-4 wk
7 Jun
26 Jul
0 wk
26 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Jun
6 Jul
0 wk
5 Jun
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 Apr – 1 May
11 Jun
5-7 wk
5 Jun
16 Jul
0 wk
5 Jun
6 Jul
0 wk
Potato
Solanum tuberosum
10 – 24 May
24 May
4-6 wk
21 Jun
21 Jun
2 wk after
21 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Apr – 1 May
21 Jun
5-7 wk
5 Jun
26 Jul
0 wk
9 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Season too short
14 – 21 May
3-4 wk
11 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 May
31 May
3-4 wk
7 Jun
21 Jun
0 wk
26 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Apr – 8 May
23 Jun
4-6 wk
5 Jun
21 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 May
10 Jul
3-4 wk
5 Jun
31 Jul
0 wk
9 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Apr – 8 May
23 Jun
4-6 wk
5 Jun
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 May
2 Jun
2-4 wk
5 Jun
16 Jun
0 wk
5 Jun
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 Jun
15 Jun
1 wk after
9 Jun
1 wk after
Spinach
Spinacia oleracea
8 – 15 May
25 Jul
3-4 wk
5 Jun
15 Aug
0 wk
1 Jun
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
7 – 21 Jul
4-6 wk
18 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
10 – 24 Apr
6-8 wk
5 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
8 – 22 May
2-4 wk
5 Jun
0 wk
26 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Apr – 8 May
23 Jun
4-6 wk
5 Jun
21 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 May
25 Jun
3-4 wk
5 Jun
16 Jul
0 wk
9 Jun
6 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
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
1 wk after
Lemon balm
Melissa officinalis
27 Mar – 10 Apr
21 May
8-10 wk
5 Jun
16 Jul
0 wk
10 Jul
5 wk after
Dill
Anethum graveolens
9 Jun
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
10 – 24 Apr
4 Jun
6-8 wk
5 Jun
16 Jul
0 wk
9 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
13 Mar – 10 Apr
21 May
8-12 wk
5 Jun
16 Jul
0 wk
10 Jul
5 wk after
Coriander
Coriandrum sativum
5 Jun
15 Aug
0 wk
26 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
6 May
8-10 wk
7 Jun
1 Jul
0 wk
Common thyme
Thymus vulgaris
27 Mar – 10 Apr
11 May
8-10 wk
5 Jun
6 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Apr
25 May
6-8 wk
5 Jun
6 Jul
0 wk
10 Jul
5 wk after
Parsley
Petroselinum crispum
10 – 24 Apr
25 May
6-8 wk
5 Jun
6 Jul
0 wk
9 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
1 – 29 Mar
7 Apr
10-14 wk
7 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
Season too short
14 – 21 May
3-4 wk
11 Jun
1 wk after
Cornflower
Centaurea cyanus
5 Jun
16 Jul
0 wk
9 Jun
6 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
2 – 16 Apr
8-10 wk
11 Jun
1 wk after
Sweet William
Dianthus barbatus
10 – 24 Apr
6-8 wk
5 Jun
0 wk
21 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
16 – 30 Apr
6-8 wk
11 Jun
1 wk after
3 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
12 – 26 Apr
27 Apr
6-8 wk
7 Jun
8 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
20 Apr – 18 May
23 May
4-8 wk
15 Jun
20 Jun
1 wk after
15 Jun
1 wk after
Foxglove
Digitalis purpurea
27 Mar – 10 Apr
8-10 wk
5 Jun
0 wk
26 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
26 Mar – 23 Apr
21 Apr
8-12 wk
18 Jun
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
16 – 30 Apr
21 Apr
6-8 wk
11 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
2 wk after
Chinese lantern
Physalis alkekengi
29 Mar – 12 Apr
21 Apr
8-10 wk
7 Jun
16 Jun
0 wk
Love in a mist
Nigella damascena
5 Jun
1 Jul
0 wk
9 Jun
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
10 – 24 Apr
19 Apr
6-8 wk
5 Jun
0 wk
16 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
15 Mar – 12 Apr
21 Apr
8-12 wk
7 Jun
16 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
19 Mar – 16 Apr
22 Mar
8-12 wk
11 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
16 – 30 Apr
6-8 wk
11 Jun
1 wk after
Corn poppy
Papaver rhoeas
5 Jun
16 Jul
0 wk
9 Jun
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
13 Mar – 10 Apr
11 May
8-12 wk
5 Jun
6 Jul
0 wk
21 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
Greenhouse
2 – 16 Apr
25 Apr
8-10 wk
11 Jun
20 Jun
1 wk after
Sweet pea
Lathyrus odoratus
10 Apr – 1 May
1 Jun
5-8 wk
5 Jun
6 Jul
0 wk
Stock
Matthiola incana
10 – 24 Apr
4 Jun
6-8 wk
5 Jun
16 Jul
0 wk
26 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
10 – 24 Apr
5 May
6-8 wk
5 Jun
16 Jun
0 wk
26 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
1 wk after
Garden pansy
Viola × wittrockiana
27 Mar – 10 Apr
21 May
8-10 wk
5 Jun
16 Jul
0 wk
21 Jun
6 Jul
2 wk after
Petunia
Petunia
Fleece
19 Mar – 16 Apr
28 Mar
8-12 wk
11 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Apr
5 May
6-8 wk
7 Jun
16 Jun
0 wk
24 Jul
7 wk after
Common zinnia
Zinnia elegans
Greenhouse
24 Apr – 8 May
21 May
4-6 wk
5 Jun
18 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
7 – 21 May
3-5 wk
11 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
30 Apr – 14 May
11 May
4-6 wk
11 Jun
1 wk after
10 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
26 Mar – 23 Apr
26 Mar
8-12 wk
18 Jun
2 wk after
Bee balm
Monarda didyma
13 Mar – 10 Apr
21 Apr
8-12 wk
5 Jun
16 Jun
0 wk
10 Jul
5 wk after
Yarrow
Achillea millefolium
10 – 24 Apr
6-8 wk
5 Jun
0 wk
26 Jun
3 wk after
Safflower
Carthamus tinctorius
5 Jun
16 Jun
0 wk
9 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Apr
25 May
6-8 wk
5 Jun
6 Jul
0 wk
18 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
24 Apr – 8 May
8 Jun
4-6 wk
5 Jun
6 Jul
0 wk
26 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
19 Mar – 2 Apr
10-12 wk
11 Jun
1 wk after
Sunflower
Helianthus annuus
21 – 28 May
15 Jun
3-4 wk
18 Jun
6 Jul
2 wk after
10 Jul
5 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
4 Jun
6-8 wk
18 Jun
16 Jul
2 wk after
24 Jul
7 wk after
Annual phlox
Phlox drummondii
Fleece
10 – 24 Apr
21 Apr
6-8 wk
5 Jun
0 wk
10 Jul
5 wk after
Hollyhock
Alcea rosea
10 – 24 Apr
6-8 wk
5 Jun
0 wk
26 Jun
3 wk after
Alpine delphinium
Delphinium elatum
13 Mar – 10 Apr
21 Apr
8-12 wk
5 Jun
16 Jun
0 wk
10 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
16 – 30 Apr
21 Apr
6-8 wk
11 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
25 May
6-8 wk
7 Jun
6 Jul
0 wk
24 Jul
7 wk after
Wood sage
Salvia nemorosa
27 Mar – 10 Apr
11 Apr
8-10 wk
5 Jun
6 Jun
0 wk
10 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
2 – 30 Apr
6-10 wk
11 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
5 Jun
16 Jul
0 wk
9 Jun
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
6 May
8-10 wk
18 Jun
1 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
10 – 24 Apr
5 May
6-8 wk
5 Jun
16 Jun
0 wk
26 Jun
3 wk after