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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 112 days 4 Jun – 24 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)
16 – 30 Apr
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
5 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
5 Jun
10 Jul
0 wk
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
5 Jun
5-7 wk
4 Jun
10 Jul
0 wk
4 Jun
30 Jun
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
2 Jun
4-5 wk
17 Jun
30 Jun
2 wk after
29 Jun
4 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)
Greenhouse
12 Mar – 9 Apr
26 Mar
8-12 wk
4 Jun
0 wk
4 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
1 Jun
6 Jun
0 wk
1 Jun
0 wk
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
29 Jun
3-4 wk
6 Jun
20 Jul
0 wk
17 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
30 Jun
0 wk
4 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
5 Jun
5-7 wk
4 Jun
10 Jul
0 wk
4 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
Fleece
24 Apr – 8 May
20 May
4-6 wk
5 Jun
17 Jun
0 wk
5 Jun
7 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
15 Jun
5-7 wk
4 Jun
20 Jul
0 wk
5 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
13 – 20 May
18 May
3-4 wk
10 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
21 May
3-4 wk
6 Jun
11 Jun
0 wk
17 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
17 Jun
4-6 wk
4 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
4 Jul
3-4 wk
4 Jun
25 Jul
0 wk
5 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
17 Jun
4-6 wk
4 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
15 May
2-4 wk
4 Jun
0 wk
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
1 Jun
6 Jun
0 wk
1 Jun
0 wk
Spinach
Spinacia oleracea
7 – 14 May
19 Jul
3-4 wk
4 Jun
9 Aug
0 wk
1 Jun
30 Jul
0 wk
Sweet potato
Ipomoea batatas
29 Jun – 13 Jul
4-6 wk
10 Aug
10 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
20 May
2-4 wk
4 Jun
0 wk
17 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
17 Jun
4-6 wk
4 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
19 Jun
3-4 wk
4 Jun
10 Jul
0 wk
5 Jun
30 Jun
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Greenhouse
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
15 May
8-10 wk
4 Jun
10 Jul
0 wk
29 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
5 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
9 – 23 Apr
29 May
6-8 wk
4 Jun
10 Jul
0 wk
5 Jun
30 Jun
0 wk
Spearmint
Mentha spicata
12 Mar – 9 Apr
15 May
8-12 wk
4 Jun
10 Jul
0 wk
29 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
4 Jun
9 Aug
0 wk
17 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
30 Apr
8-10 wk
6 Jun
25 Jun
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
5 May
8-10 wk
4 Jun
30 Jun
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
19 May
6-8 wk
4 Jun
30 Jun
0 wk
29 Jun
4 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
19 May
6-8 wk
4 Jun
30 Jun
0 wk
5 Jun
20 Jun
0 wk
Rosemary
Salvia rosmarinus
28 Feb – 28 Mar
1 Apr
10-14 wk
6 Jun
10 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
Greenhouse
13 – 20 May
3-4 wk
10 Jun
1 wk after
Cornflower
Centaurea cyanus
4 Jun
10 Jul
0 wk
5 Jun
30 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
26 Mar – 9 Apr
15 Apr
8-10 wk
4 Jun
10 Jun
0 wk
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
14 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
9 – 23 Apr
29 Apr
6-8 wk
4 Jun
10 Jun
0 wk
6 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
11 – 25 Apr
16 Apr
6-8 wk
6 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
15 Apr – 13 May
21 May
4-8 wk
10 Jun
18 Jun
1 wk after
10 Jun
1 wk after
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
17 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
25 Mar – 22 Apr
14 May
8-12 wk
17 Jun
9 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
15 – 29 Apr
6-8 wk
10 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
15 Apr
8-10 wk
6 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
25 Jun
0 wk
5 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
9 – 23 Apr
19 Apr
6-8 wk
4 Jun
0 wk
6 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
14 Mar – 11 Apr
15 Apr
8-12 wk
6 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
18 Mar – 15 Apr
19 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
10 Jul
0 wk
5 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
5 May
8-12 wk
4 Jun
30 Jun
0 wk
14 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
1 – 15 Apr
25 Apr
8-10 wk
10 Jun
20 Jun
1 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
26 May
5-8 wk
4 Jun
30 Jun
0 wk
Stock
Matthiola incana
9 – 23 Apr
29 May
6-8 wk
4 Jun
10 Jul
0 wk
17 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
29 Apr
6-8 wk
4 Jun
10 Jun
0 wk
17 Jun
2 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
15 May
8-10 wk
4 Jun
10 Jul
0 wk
14 Jun
30 Jun
1 wk after
Petunia
Petunia
Greenhouse
12 Mar – 9 Apr
15 Apr
8-12 wk
4 Jun
10 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Apr
29 Apr
6-8 wk
6 Jun
10 Jun
0 wk
17 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
6 – 20 May
3-5 wk
10 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
29 Apr – 13 May
30 Apr
4-6 wk
10 Jun
1 wk after
29 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
25 Mar – 22 Apr
18 Apr
8-12 wk
17 Jun
2 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
15 Apr
8-12 wk
4 Jun
10 Jun
0 wk
29 Jun
4 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
17 Jun
2 wk after
Safflower
Carthamus tinctorius
4 Jun
10 Jun
0 wk
5 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
19 May
6-8 wk
4 Jun
30 Jun
0 wk
19 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
2 Jun
4-6 wk
4 Jun
30 Jun
0 wk
17 Jun
20 Jun
2 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
9 Jun
3-4 wk
17 Jun
30 Jun
2 wk after
29 Jun
4 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
29 May
6-8 wk
17 Jun
10 Jul
2 wk after
17 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
9 – 23 Apr
12 Apr
6-8 wk
4 Jun
0 wk
29 Jun
4 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
17 Jun
2 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
15 Apr
8-12 wk
4 Jun
10 Jun
0 wk
29 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
19 May
6-8 wk
6 Jun
30 Jun
0 wk
17 Jul
6 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
5 Apr
8-10 wk
4 Jun
0 wk
29 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
1 – 29 Apr
12 Apr
6-10 wk
10 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
10 Jul
0 wk
5 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
5 May
8-10 wk
17 Jun
30 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
29 Apr
6-8 wk
4 Jun
10 Jun
0 wk
17 Jun
2 wk after