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Method
Rel. frost
Last spring frost (0°C) 11 Jun Normal year · 20 years of data
Frost-free season 92 days 11 Jun – 11 Sep
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)
23 Apr – 7 May
15 Jun
5-7 wk
11 Jun
20 Jul
0 wk
15 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
30 Apr – 14 May
27 Jun
4-6 wk
11 Jun
25 Jul
0 wk
15 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
25 Mar – 22 Apr
8-12 wk
17 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
23 Apr – 7 May
10 Jun
5-7 wk
11 Jun
15 Jul
0 wk
11 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
20 – 27 May
3-4 wk
17 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
20 – 27 May
1 Jun
4-5 wk
24 Jun
29 Jun
2 wk after
16 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
22 – 29 Jun
3-4 wk
20 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
19 Mar – 16 Apr
31 Mar
8-12 wk
11 Jun
0 wk
11 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
15 Jun
1 wk after
15 Jun
1 wk after
Maize
Zea mays
Greenhouse
14 – 21 May
3-4 wk
11 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 May
28 Jun
3-4 wk
13 Jun
19 Jul
0 wk
2 Jul
9 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 Jun
5 Jul
0 wk
11 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
23 Apr – 7 May
10 Jun
5-7 wk
11 Jun
15 Jul
0 wk
11 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
Fleece
4 – 18 May
17 May
4-6 wk
15 Jun
1 wk after
15 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
23 Apr – 7 May
20 Jun
5-7 wk
11 Jun
25 Jul
0 wk
15 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
27 May – 3 Jun
3-4 wk
24 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
14 – 21 May
20 May
3-4 wk
11 Jun
0 wk
21 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
30 Apr – 14 May
22 Jun
4-6 wk
11 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
14 – 21 May
9 Jul
3-4 wk
11 Jun
30 Jul
0 wk
15 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
30 Apr – 14 May
22 Jun
4-6 wk
11 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
14 – 28 May
15 May
2-4 wk
11 Jun
0 wk
11 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 Jun
1 wk after
15 Jun
1 wk after
Spinach
Spinacia oleracea
14 – 21 May
24 Jul
3-4 wk
11 Jun
14 Aug
0 wk
7 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
13 – 27 Jul
4-6 wk
24 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
16 – 30 Apr
17 Apr
6-8 wk
11 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
20 May – 3 Jun
25 May
2-4 wk
17 Jun
1 wk after
16 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
30 Apr – 14 May
22 Jun
4-6 wk
11 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
14 – 21 May
24 Jun
3-4 wk
11 Jun
15 Jul
0 wk
15 Jun
5 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
Greenhouse
6 – 20 May
24 May
4-6 wk
17 Jun
21 Jun
1 wk after
Lemon balm
Melissa officinalis
2 – 16 Apr
20 May
8-10 wk
11 Jun
15 Jul
0 wk
16 Jul
5 wk after
Dill
Anethum graveolens
15 Jun
19 Jul
1 wk after
Wild chives
Allium schoenoprasum
16 – 30 Apr
3 Jun
6-8 wk
11 Jun
15 Jul
0 wk
15 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
19 Mar – 16 Apr
20 May
8-12 wk
11 Jun
15 Jul
0 wk
16 Jul
5 wk after
Coriander
Coriandrum sativum
11 Jun
8 Aug
0 wk
2 Jul
29 Jul
3 wk after
Garden sage
Salvia officinalis
4 – 18 Apr
5 May
8-10 wk
13 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
2 – 16 Apr
10 May
8-10 wk
11 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
16 – 30 Apr
24 May
6-8 wk
11 Jun
5 Jul
0 wk
16 Jul
5 wk after
Parsley
Petroselinum crispum
16 – 30 Apr
24 May
6-8 wk
11 Jun
5 Jul
0 wk
15 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
7 Mar – 4 Apr
26 Mar
10-14 wk
13 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
20 – 27 May
31 May
3-4 wk
17 Jun
21 Jun
1 wk after
Cornflower
Centaurea cyanus
11 Jun
15 Jul
0 wk
15 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
8 – 22 Apr
22 Apr
8-10 wk
17 Jun
17 Jun
1 wk after
Sweet William
Dianthus barbatus
16 – 30 Apr
6-8 wk
11 Jun
0 wk
27 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
22 Apr – 6 May
6 May
6-8 wk
17 Jun
17 Jun
1 wk after
9 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
27 Apr – 11 May
30 Apr
6-8 wk
22 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
7 May – 4 Jun
24 May
4-8 wk
2 Jul
3 wk after
2 Jul
3 wk after
Foxglove
Digitalis purpurea
2 – 16 Apr
8-10 wk
11 Jun
0 wk
2 Jul
3 wk after
Busy lizzie
Impatiens walleriana
20 Apr – 18 May
19 May
8-12 wk
13 Jul
14 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
22 Apr – 6 May
16 May
6-8 wk
17 Jun
27 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
13 – 27 May
4-6 wk
24 Jun
2 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Apr
14 Apr
8-10 wk
13 Jun
0 wk
Love in a mist
Nigella damascena
11 Jun
30 Jun
0 wk
15 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
22 Apr – 6 May
26 Apr
6-8 wk
17 Jun
1 wk after
9 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
21 Mar – 18 Apr
14 Apr
8-12 wk
13 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
19 Mar – 16 Apr
21 Mar
8-12 wk
11 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
25 Mar – 22 Apr
16 Apr
8-12 wk
17 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
22 Apr – 6 May
30 Apr
6-8 wk
17 Jun
1 wk after
Corn poppy
Papaver rhoeas
11 Jun
15 Jul
0 wk
15 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
19 Mar – 16 Apr
10 May
8-12 wk
11 Jun
5 Jul
0 wk
27 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
15 – 29 Apr
2 May
8-10 wk
24 Jun
27 Jun
2 wk after
Sweet pea
Lathyrus odoratus
16 Apr – 7 May
31 May
5-8 wk
11 Jun
5 Jul
0 wk
Stock
Matthiola incana
16 – 30 Apr
3 Jun
6-8 wk
11 Jun
15 Jul
0 wk
2 Jul
5 Jul
3 wk after
Wormwood
Artemisia absinthium
16 – 30 Apr
4 May
6-8 wk
11 Jun
15 Jun
0 wk
2 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
6 – 20 May
9 May
4-6 wk
17 Jun
1 wk after
Garden pansy
Viola × wittrockiana
2 – 16 Apr
20 May
8-10 wk
11 Jun
15 Jul
0 wk
27 Jun
5 Jul
2 wk after
Petunia
Petunia
Fleece
25 Mar – 22 Apr
22 Apr
8-12 wk
17 Jun
17 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Apr – 2 May
28 Apr
6-8 wk
13 Jun
0 wk
30 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
6 – 20 May
24 May
4-6 wk
17 Jun
21 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
13 – 27 May
31 May
3-5 wk
17 Jun
21 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
6 – 20 May
24 May
4-6 wk
17 Jun
21 Jun
1 wk after
16 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
1 – 29 Apr
16 May
8-12 wk
24 Jun
11 Jul
2 wk after
Bee balm
Monarda didyma
19 Mar – 16 Apr
20 Apr
8-12 wk
11 Jun
15 Jun
0 wk
16 Jul
5 wk after
Yarrow
Achillea millefolium
16 – 30 Apr
6-8 wk
11 Jun
0 wk
2 Jul
3 wk after
Safflower
Carthamus tinctorius
11 Jun
15 Jun
0 wk
15 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
16 – 30 Apr
24 May
6-8 wk
11 Jun
5 Jul
0 wk
24 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
30 Apr – 14 May
7 Jun
4-6 wk
11 Jun
5 Jul
0 wk
2 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
25 Mar – 8 Apr
10-12 wk
17 Jun
1 wk after
Sunflower
Helianthus annuus
27 May – 3 Jun
3 Jun
3-4 wk
24 Jun
24 Jun
2 wk after
16 Jul
5 wk after
China aster
Callistephus chinensis
29 Apr – 13 May
23 May
6-8 wk
24 Jun
4 Jul
2 wk after
30 Jul
7 wk after
Annual phlox
Phlox drummondii
22 Apr – 6 May
26 Apr
6-8 wk
17 Jun
1 wk after
30 Jul
7 wk after
Hollyhock
Alcea rosea
16 – 30 Apr
6-8 wk
11 Jun
0 wk
2 Jul
3 wk after
Alpine delphinium
Delphinium elatum
19 Mar – 16 Apr
20 Apr
8-12 wk
11 Jun
15 Jun
0 wk
16 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
22 Apr – 6 May
16 May
6-8 wk
17 Jun
27 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
18 Apr – 2 May
13 May
6-8 wk
13 Jun
24 Jun
0 wk
30 Jul
7 wk after
Wood sage
Salvia nemorosa
2 – 16 Apr
10 Apr
8-10 wk
11 Jun
0 wk
16 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
8 Apr – 6 May
10 May
6-10 wk
17 Jun
21 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
11 Jun
15 Jul
0 wk
15 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
15 – 29 Apr
25 Apr
8-10 wk
24 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
16 – 30 Apr
4 May
6-8 wk
11 Jun
15 Jun
0 wk
2 Jul
3 wk after