Garden calendar

The data shown here are for a temperate climate in the northern hemisphere.

Meaning of colors & symbols in the tables

Meaning of colors and symbols
Meaning	Symbol	Meaning
Sowing	Pre	Pre-sowing in pots
Planting	Gre	Greenhouse
Harvesting	GrM	Green manure plant
Special treatments	I, II etc.	Months

Table Vegetables & Herbs

Also includes green manure plants and some flowers used as green manure plants.

Plant name	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII	Comments
Anise													Annual plant
Asparagus													Harvest in spring in the third and following years
Asparagus													Harvest in spring in the third and following years
Barley													Summer barley in II-IV; winter barley in IX-XI. 1 kg / 100 m2
Basil			Pre	Pre									Pre-sowing in IV & V; this plant is a perennial but doesn't survive frost
Bean (Phaseolus vulgaris)													White beans & kidney beans sow from third week of V when there is no danger anymore for night frost, green beans from third week of V to first half of VII
Black salsify													Use fresh seeds only. Companion plants: Onions & Legumes.
Borage													Borage can be used as a green manure plant
Buckwheat													Sow in third week of V
Capucijner pea
Caraway													75 g / 100 m2
Celery		Pre	Pre	Pre									Plant out in V & VI
Chard													Keep the soil moist
Chervil													Sow the annual type each month from III/IX. Sow the perennial type from VII/IX, germinates after the winter.
Chives													Perennial; likes half-shade
Dill													Companion plant of Fava bean
Eggplant	Pre												Seeds need temperature of min. 68F (20C) to germinate. Needs longer time before it forms fruits, therefore pre-sowing in January.
Endive			Pre	Pre									Companion plant of legumes. Pre-sowing or sowing under glass in III & IV for summer cultivation. Sowing outside in VI for harvest in the autumn, not earlier because endive doesn't like temperatures below 50F (10C) in its first month of growth.
Plant name	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII	Comments
Fava bean													Sow dill as companion plant in the row, to protect against greenfly. Cut out the edible tops of the fava bean plants to prevent against greenfly.
Gherkin													To stimulate the forming of fruits: Cut out the tops above the fourth leaf, cut off the tops of the side sprigs above the third leaf. Companion plant of maize.
Grass													Lawn: 1 kg / 100 m2; pasture land (for example BG 11) 400 g / 100 m2. Grass needs a soil temperature above 52 F (11 C) to grow.
Hemp						Gre	Gre	Gre					In VI/VIII hemp can still be sown as a green manure plant.
Jerusalem artichoke													Replant in IV
Lemon balm			Pre	Pre	Pre								Perennial plant
Lettuce		Pre	Pre	Pre	Pre	Pre	Pre	Pre	Pre	Pre			I always pre-sow all my lettuce in pots, but you can also sow directly in the ground. There exist many species that differ from country to country. Some species are better for summer cultivation, others more fit for sowing in autumn and early spring.
Oat
Onion													Sow in III-V for salad onions.
Pea										Gre	Gre		Sow 1/2 III - 1/2 IV for harvest in the summer. You can also (pre-)sow them already in II. I sow peas in my greenhouse in X and XI for harvest in spring next year.
Physalis peruviana			Pre	Pre	Pre								Needs a warm and sunny location. I grow them in a greenhouse.
Potato													Planting early cultivars in the first half of IV, late cultivars in the second half of IV
Satureja				Pre									Saturaja exists as annual and perennial. This is for the annual plant.
Snow Pea										Gre	Gre		Sow 1/2 III - 1/2 IV for harvest in the summer. You can also (pre-)sow them already in II. I sow snow peas in my greenhouse in X and XI for harvest in spring next year.
Strawberry													Plant young plants in first 1/2 of VIII. Harvest the two following years from these plants, then replace them. I keep half of my plants one year old, the other half two years old.
Plant name	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII	Comments
Sunflower							GrM	GrM					Sow from 2nd half IV to VIII. VII & VIII only as green manure plant.
Tarragon			Pre	Pre									Perennial plant
Thyme			Pre	Pre	Pre	Pre
Tomato		Pre	Pre	Pre									Pre-sow end II to 1/2 IV
Zucchini													Sowing or pre-sowing in pots
Plant name	I			IV			VII			X			Comments

Table Flowers

Plant name	III	IV	V	Comments
Alyssum				Perennial rock plant
Calendula	Pre	Pre		From 1/2 IV sow outside
Chamomile
Dahlia				Dig out the roots before it begins to freeze. Replant them at the beginning of the summer when there's no danger of frost anymore.
Dianthus barbatus				Bi-annual
Digitalis				Bi-annual plant
Gladiolus				The tubers need to be harvested in X and kept free from frost; re-plant them in IV-V.
Gypsophila				Likes lime. Annual plant, becomes only 6 weeks old. Rock plant.
Gypsyweed				Perennial
Nepeta			Pre	Perennial plant
Poppy

|- | Tagetes|| || ||style="background:BurlyWood" |Pre ||style="background:BurlyWood" |Pre ||style="background:BurlyWood" | || || || || || || || || |- | Plant name||I || || ||IV || || ||VII || || ||X || || ||Comments |}

How to use the tables

Read the columns per month. Each colored cell means that there's a possible task for this plant in this month. You can make your 'to-do' list for that month.
Read the rows to find out details about one particular plant.

Gallery

An example of how i made my garden calendar in my own computer. Here are shown only some plants.