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Garden decision library

Practical garden guides

Make one useful decision at a time with local weather signals, crop calendars and plant-health evidence.

Weather decisions

First frost is forecast: what should I protect tonight?

Use the lowest hourly temperature, crop tenderness and your garden's cold pockets to decide what needs cover before sunset.

Planting decisions

What can I still sow before the first frost?

Count usable growing days, not just calendar weeks, then choose quick or cold-tolerant crops that can finish in your remaining season.

Planting decisions

When to plant garlic: use soil and frost signals, not one date

Plant autumn garlic after sustained cooling, while the soil is still workable and cloves have time to root without producing excessive top growth.

Plant health

Late blight vs early blight on tomatoes

Compare where lesions begin, how they look and which weather preceded them before deciding whether a tomato problem is early or late blight.

Weather decisions

Leaf wetness: the garden weather signal most forecasts omit

Rain, dew and irrigation can keep a leaf surface wet long after precipitation stops, giving some pathogens the infection period they need.

Weather decisions

Should I water after rain? Read the water balance

Rainfall total is only one part of the decision; rooting depth, soil drainage, crop stage and recent water loss determine whether roots received enough.

Weather decisions

How to choose a safer garden spray window

A usable application window needs suitable wind, rain, temperature and nearby activity at the same time—and the product label still decides.

Weather decisions

Growing degree days without the maths

Growing degree days turn daily warmth into a running seasonal total that can be more useful than a calendar date for biological development.

Plant health

Can diseased plants go in the compost?

Home compost rarely proves that every part reached a pathogen-killing temperature, so diagnosis and local disposal options should drive the decision.

Seasonal planning

Crop rotation in a small garden: a workable four-family plan

Group crops by botanical family, map where each group grew and move the groups—not individual vegetables—as space allows next season.