Perpetual Green Gardens - "Zone 4" magazine had a long article in their Winter 2012 edition, about the Ott-Kimm Conservatory in MT - which uses no electricity, yet through geothermal and other planning, achieves a Zone 8 for plants - he grows figs, peaches, dogwood. Greenhouse is sunk 5 feet into the ground.... I'd love to try something like this!

wilipini underground greenhouse in zone 4b, going to grow citrus

Tips on growing peonies

How To Grow Plants From Cuttings

10 Steps to Get 50-80 Pounds of Tomatoes from Every Plant You Grow. Revealed: The Secret to Growing Juicy, Tasty, High-Yield Tomatoes

Side note: You can actually root and then plant basil straight from a cutting. | How To Grow Delicious Herbs And Veggies On Your Fire Escape

15 Easy Tips for Growing Perfect Strawberries

Grow Tropical Indoor Plants • Helpful Tips & Ideas!

Sugar snap peas in January, zone 4, unheated greenhouse.

Greenhouse

So useful right now: a visual guide to houseplants, according to their need for light.

Calathea ornata cultivar

Zone 4, unheated greenhouse, January lettuce.

Put diapers in the bottom of your potted plants. | 32 Cheap And Easy Backyard Ideas That Are Borderline Genius

10 Steps to Get 50-80 Pounds of Tomatoes from Every Plant You Grow. Revealed: The Secret to Growing Juicy, Tasty, High-Yield Tomatoes

Have a yard that doesn’t get a lot of light? Plant veggies that flourish in the shade. | 23 Absolutely Essential Gardening Diagrams

Medinella flowers

plant Cosmos for Peace. planting the garden that is your life. (meanings of flowers)

Garden

How to Propagate Lavender - an easy and inexpensive way to create more plants for free.

Learning about indoor plants / indoor gardening