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Walt Henderson

PDF · printable

Seed-starting planner

Plan when to sow every crop, week by week.

$12
Buy now
Seed-starting calendar chart beside a pile of seed packets

PDF guide · 18 pages

Seedling care guide

Light, water and feeding for strong seedlings.

$9
Hands tending tomato seedlings under basement grow lights

Start here

New here? Start with these.

  1. When to plant, month by month

    My calendar for the whole season.

  2. Protect plants from a late frost

    Row covers and what to watch for.

  3. Harvest and store winter squash

    Curing, storing and using it all winter.

  4. Harden off your seedlings

    How to move plants outside safely.

Video course · 6 lessons

Grow vegetables from seed

A course on starting seeds, planting out and growing a full garden.

$49
Winter squash on a porch with autumn leaves and a lake

Downloads and courses

Shop

Download as soon as you pay. Yours to keep.

Printed to order

Merch

My designs, printed to order and shipped by Printful.

Merch is printed to order and shipped by Printful. Colours on screen are close to the print.

Latest videos

Vegetable gardening, every week.

Hands tending tomato seedlings under basement grow lights

Nov 5, 2026 · 9 min

Start tomato seeds indoors

Light, warmth and the right timing.

Walt holding a tomato seedling in a shed doorway

Hello, I’m Walt

I’m Walt, and I’ve grown vegetables for over 30 years. I live by a lake where summers are short, so I’ve learned to start early and plan well.

I post gardening videos every week. I sell a seed-starting planner, guides and courses on growing your own food.

Hands tending tomato seedlings under basement grow lights

Newsletter

One garden task and one seasonal tip, every week.

  • 11,000 gardeners read it

  • Free, and you can leave any time

One email a week. Unsubscribe any time.

Will your guides work where I live?

Yes. Every plan is built around your last frost date, so you can shift it to fit your area.

How do I get my download?

The planner and course arrive by email as soon as you pay, and you can download them again any time.

How does merch shipping work?

Merch is printed to order and shipped by Printful. You’ll see the cost and delivery time at checkout.

What if my order arrives damaged?

Email me with a photo and I’ll send a new one.