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