The spring equinox is just around the corner. How will longer days of sunlight affect plant growth?

Gardeners across the continent are keeping a close eye on their Test Gardens.

While most tulip Test Gardens still lay in waiting under the ground, there are 44 emerged tulip gardens to celebrate in the Northern Hemisphere.

Do you see a pattern for emerging Test Gardens? Watch carefully and predict which gardens will be next.

Why did these gardens emerge first? Maps can reveal clues to help answer your questions.

Explore questions about temperature in the garden - above and below ground.