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Method
Rel. frost
Last spring frost (0°C) 3 Jun Frost 9 of 10 years · 20 years of data
Frost-free season 80 days 3 Jun – 22 Aug
Probability that frost is over

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