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Garden Planning, Succession & Crop RotationGarden Bed Allocation Calendar
A bed allocation calendar answers one question for every patch of ground: what is it doing this month? Here is how to build one that avoids conflicts.
Key points
- Allocate beds with a grid of beds against seasons.
- Measure sunlight and drainage before assigning crops.
- Place long-occupying crops first, then fit shorter crops around them.
- Keep a flex space and update the record as the season goes.
What is bed allocation?
Bed allocation is the plan for which crop occupies which bed in which part of the year. It combines your bed map, your planting calendar and your rotation record. The result is a grid showing every bed across the seasons.
It prevents the common problem of arriving at planting day with more plants than space, or several crops that all want the sunniest bed.
A sketch drawn to rough scale is better than a mental picture, and it makes the plan easy to share with family members who help.
How do you measure your space and sunlight?
Measure each bed and note its sun exposure through the day. Most vegetables, especially fruiting crops, need full sun, which is usually described as at least six to eight hours of direct light. Leafy crops tolerate more shade. Observe the garden at several times of day in the growing season, since shade changes as the sun's path shifts.
Note drainage and wind exposure too. A bed that stays soggy suits different crops than a dry, sandy one.
Orientation can matter too. Beds that run north to south often receive more even light across the day than those that run east to west, though local conditions vary.
How long does each crop occupy the ground?
A crop's occupancy runs from planting to the last harvest and cleanup, not just to maturity. Long crops such as winter squash, garlic or storage onions take a bed for most of a season. Quick crops like radishes take only weeks. Mark each crop as a bar on the timeline.
Use your frost dates to place the start and end. Days to maturity on seed packets give the middle.
Sunlight changes through the year. A bed that is sunny in summer may be shaded in spring by a tree without leaves, or the other way round, so observe at several times before committing a bed to a crop. Update the chart whenever a plan changes, even by a week. A grid that matches reality is far more useful next winter than one that stopped being accurate in June.
- Long occupants: winter squash, garlic, storage onions, tomatoes
- Medium: brassicas, peppers, beans
- Short: radish, lettuce, spinach, baby greens
How do you assign crops to beds?
Start with the long occupants and place them in the best beds for their needs, respecting rotation. Then fit medium and short crops around them. Group crops with similar water needs so irrigation is simple, and keep tall crops where they will not shade shorter ones.
For example, you might give a sunny bed to tomatoes and peppers, a partly shaded bed to leafy greens, and a bed that clears early to a fall crop. Adapt that to your garden's layout.
If your garden is large, consider grouping beds into zones by how often you visit them. Place crops that need daily picking, such as salad greens and herbs, nearest the house, and crops that need less attention, such as winter squash, farther away.
How do you leave room for flexibility?
Hold one bed or part of a bed open as a flex space. It can take a failed crop's replacement, a surprise plant sale find, or a quick catch crop. Without flex space, a plan can fall apart at the first surprise.
Also leave pathways wide enough to work in. Cramped beds are harder to weed and harvest.
A flex space is also a good place for trials of new crops or varieties, where a failure costs little and the lesson is worth having.
What records should the allocation include?
Keep a grid of beds against seasons, with the crop and its family in each cell, along with planting and harvest dates. Update it as things change.
When you plan the following year, the record shows what grew where and helps you rotate. Soil tests tied to each bed also help, and local recommendations guide any amendments. Nutrient management rules vary by state.
What common mistakes should you avoid?
Overplanting is the most common, because seed packets are cheap and ambition is high. Another is giving every crop the best bed. A third is ignoring access, so a bed in the middle cannot be reached without stepping on soil.
Start smaller than you think you need and expand once the plan proves workable.
A walk through the garden with the plan in hand, before planting, often exposes problems that were invisible on paper.
Sources and further reading
Last reviewed: November 2026. Educational information, ranges only. Confirm timing with your county extension office.