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The blog

Marmanda's notebook.

Long, sourced articles about the vegetable garden: what to plant and when, which pairings actually hold up, how to read a sowing calendar.

6 min read

Why Do My Tomatoes Have Black Bottoms? Blossom End Rot Explained

Blossom end rot is not a disease, not a fungus, and almost never a shortage of calcium in your soil. It is a water supply problem inside the plant, which changes entirely what you should do about it.

  • Diseases
  • Soil
  • Tomato

6 min read

What to plant in October

October is the month the garden changes gear: the sowing window is closing, the planting window is opening. What still goes in, what needs covering, and what is better left standing.

  • Calendar
  • October
  • Soil

6 min read

Companion plants for courgettes, and why space matters more

Companion planting charts talk about which plants like each other. With courgettes the real questions are bulk, shade and pollination. Here is what holds up and what is only tradition.

  • Companion planting
  • Pairings
  • Courgette

6 min read

How Far Apart Should You Plant Tomatoes?

There is no single correct distance between two tomato plants. Here are the three variables that decide it, the spacings most growers work from, and how to adjust them for your own plot.

  • Diseases
  • Small garden
  • Tomato

7 min read

Tomato blight: how to prevent it, and why you cannot cure it

Late blight is not a fungus, and that distinction explains everything else. Its biology sets the terms: liquid water on the leaves and a moderate temperature. Everything that actually works consists of denying it those terms.

  • Diseases
  • Rotation
  • Tomato

4 min read

When to plant tomatoes: the date is not a date

"After the last frost" is not a method. Here are the three signals that actually determine planting time, and how to read them where you live.

  • Calendar
  • Sowing
  • Tomato

4 min read

What to plant in September

September is not the end of the season. It is the month that decides what your garden looks like in March, provided you sow quickly.

  • Calendar
  • Sowing
  • September

Turn the reading into a garden.

Marmanda turns this advice into a dated, placed plan for your own plot.