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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 84 days 4 Jun – 27 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)
16 – 30 Apr
14 Jun
5-7 wk
4 Jun
19 Jul
0 wk
8 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
26 Jun
4-6 wk
4 Jun
24 Jul
0 wk
8 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Apr
9 Jun
5-7 wk
4 Jun
14 Jul
0 wk
4 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
13 – 20 May
3-4 wk
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
13 – 20 May
25 May
4-5 wk
17 Jun
22 Jun
2 wk after
9 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
12 Mar – 9 Apr
21 Mar
8-12 wk
4 Jun
0 wk
4 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
8 Jun
1 wk after
8 Jun
1 wk after
Maize
Zea mays
Season too short
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
21 Jun
3-4 wk
6 Jun
12 Jul
0 wk
25 Jun
2 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
2 Jul
0 wk
4 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
9 Jun
5-7 wk
4 Jun
14 Jul
0 wk
4 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
Fleece
27 Apr – 11 May
14 May
4-6 wk
8 Jun
11 Jun
1 wk after
8 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
17 Jun
5-7 wk
4 Jun
22 Jul
0 wk
8 Jun
12 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
13 – 20 May
26 May
3-4 wk
10 Jun
16 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
7 – 14 May
15 May
3-4 wk
4 Jun
5 Jun
0 wk
14 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
21 Jun
4-6 wk
4 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
6 Jul
3-4 wk
4 Jun
27 Jul
0 wk
8 Jun
17 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
21 Jun
4-6 wk
4 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
10 May
2-4 wk
4 Jun
0 wk
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 Jun
1 wk after
8 Jun
1 wk after
Spinach
Spinacia oleracea
7 – 14 May
23 Jul
3-4 wk
4 Jun
13 Aug
0 wk
31 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
6 – 20 Jul
4-6 wk
17 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
7 – 21 May
28 May
2-4 wk
4 Jun
11 Jun
0 wk
25 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
21 Jun
4-6 wk
4 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
21 Jun
3-4 wk
4 Jun
12 Jul
0 wk
8 Jun
2 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
29 Apr – 13 May
4 May
4-6 wk
10 Jun
1 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
17 May
8-10 wk
4 Jun
12 Jul
0 wk
9 Jul
5 wk after
Dill
Anethum graveolens
8 Jun
12 Jul
1 wk after
Wild chives
Allium schoenoprasum
9 – 23 Apr
2 Jun
6-8 wk
4 Jun
14 Jul
0 wk
8 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
12 Mar – 9 Apr
19 May
8-12 wk
4 Jun
14 Jul
0 wk
9 Jul
5 wk after
Coriander
Coriandrum sativum
4 Jun
1 Aug
0 wk
25 Jun
22 Jul
3 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
4 May
8-10 wk
6 Jun
29 Jun
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
9 May
8-10 wk
4 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
23 May
6-8 wk
4 Jun
4 Jul
0 wk
9 Jul
5 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
23 May
6-8 wk
4 Jun
4 Jul
0 wk
8 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
Fleece
26 Feb – 26 Mar
28 Mar
10-14 wk
4 Jun
6 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
13 – 20 May
3-4 wk
10 Jun
1 wk after
Cornflower
Centaurea cyanus
4 Jun
14 Jul
0 wk
8 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
1 – 15 Apr
15 Apr
8-10 wk
10 Jun
10 Jun
1 wk after
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
20 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
1 wk after
2 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
11 – 25 Apr
4 May
6-8 wk
6 Jun
15 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
30 Apr – 28 May
18 May
4-8 wk
25 Jun
3 wk after
25 Jun
3 wk after
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
25 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
25 Mar – 22 Apr
22 May
8-12 wk
17 Jun
17 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
15 – 29 Apr
9 May
6-8 wk
10 Jun
20 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
2 wk after
Chinese lantern
Physalis alkekengi
28 Mar – 11 Apr
7 Apr
8-10 wk
6 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
27 Jun
0 wk
8 Jun
17 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
9 – 23 Apr
28 Apr
6-8 wk
4 Jun
9 Jun
0 wk
15 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
14 Mar – 11 Apr
7 Apr
8-12 wk
6 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
12 Mar – 9 Apr
20 Mar
8-12 wk
4 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
18 Mar – 15 Apr
27 Mar
8-12 wk
10 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
Corn poppy
Papaver rhoeas
4 Jun
12 Jul
0 wk
8 Jun
2 Jul
1 wk after
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
7 May
8-12 wk
4 Jun
2 Jul
0 wk
20 Jun
22 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
8 – 22 Apr
25 Apr
8-10 wk
17 Jun
20 Jun
2 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
30 May
5-8 wk
4 Jun
4 Jul
0 wk
Stock
Matthiola incana
9 – 23 Apr
31 May
6-8 wk
4 Jun
12 Jul
0 wk
25 Jun
2 Jul
3 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
3 May
6-8 wk
4 Jun
14 Jun
0 wk
25 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
26 Mar – 9 Apr
19 May
8-10 wk
4 Jun
14 Jul
0 wk
20 Jun
4 Jul
2 wk after
Petunia
Petunia
Fleece
18 Mar – 15 Apr
15 Apr
8-12 wk
10 Jun
10 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Apr
21 Apr
6-8 wk
6 Jun
0 wk
23 Jul
7 wk after
Common zinnia
Zinnia elegans
Greenhouse
23 Apr – 7 May
28 May
4-6 wk
4 Jun
25 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
6 – 20 May
11 May
3-5 wk
10 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
29 Apr – 13 May
18 May
4-6 wk
10 Jun
15 Jun
1 wk after
9 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
25 Mar – 22 Apr
26 Apr
8-12 wk
17 Jun
21 Jun
2 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
17 Apr
8-12 wk
4 Jun
12 Jun
0 wk
9 Jul
5 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Safflower
Carthamus tinctorius
4 Jun
14 Jun
0 wk
8 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
23 May
6-8 wk
4 Jun
4 Jul
0 wk
17 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
4 Jun
4-6 wk
4 Jun
2 Jul
0 wk
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
18 Mar – 1 Apr
10-12 wk
10 Jun
1 wk after
Sunflower
Helianthus annuus
20 – 27 May
27 May
3-4 wk
17 Jun
17 Jun
2 wk after
9 Jul
5 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
16 May
6-8 wk
17 Jun
27 Jun
2 wk after
23 Jul
7 wk after
Annual phlox
Phlox drummondii
Fleece
9 – 23 Apr
9 May
6-8 wk
4 Jun
20 Jun
0 wk
9 Jul
5 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
25 Jun
3 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
17 Apr
8-12 wk
4 Jun
12 Jun
0 wk
9 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
15 – 29 Apr
9 May
6-8 wk
10 Jun
20 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
6 May
6-8 wk
6 Jun
17 Jun
0 wk
23 Jul
7 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
7 Apr
8-10 wk
4 Jun
0 wk
9 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
1 – 29 Apr
20 Apr
6-10 wk
10 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
6 Jul
0 wk
8 Jun
26 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
1 – 15 Apr
27 Apr
8-10 wk
10 Jun
22 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
3 May
6-8 wk
4 Jun
14 Jun
0 wk
25 Jun
3 wk after