HGTV Obsessed Episode 17: Kelly Edwards

This week’s episode is all about gardening. We’ll talk 2021 gardening trends with Kelly Edwards, get veggie-garden advice from Kelly Smith Trimble, then learn spring houseplant care from the Plant Daddies.

April 22, 2021

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This week, Marianne puts the ‘G’ back in HGTV by talking all about spring gardening and houseplants with Kelly Edwards, Kelly Smith Trimble and the Plant Daddies.

Longtime HGTV fans will recognize lifestyle expert Kelly Edwards from the classic HGTV show Design on a Dimewhich you can watch (or rewatch) on discovery+. Kelly joined Marianne to talk about Gardencast’s top 2021 gardening trends. The top five trends all involve health and wellness, but Marianne and Kelly both agree their favorite trend is using plants like pansies and violas that appear to have smiling faces.

They also discuss growing and cooking with more unusual plants and herbs like fennel, lemon balm and lemongrass. “It’s fun to step outside the box especially if you’re a traveler like my husband and I," explains Kelly. “We used to travel so much … and now not being able to go, at least we have all these herbs right here so we can do all those Thai dishes, Vietnamese dishes, African dishes ...” No matter what type of garden you grow, Kelly advises the most basic and important thing gardeners need to do is learn their plant hardiness zone so they'll know when to plant and what will thrive in their region.

What Growing Zone Are You In?

Learn more about the USDA Plant Hardiness Zone Map and how to use it to make your garden grow.

Defend the Trend: Water or Soil?

When asked if the indoor hydroponic garden trends are here to stay, Kelly says she loves the concept and they’re great for people who can’t do gardening year-round or don’t have a yard. But she personally prefers going old-school and growing her plants in the soil.

13 Best Indoor Herb Garden Kits

Grab one of these indoor herb garden kits and start growing thyme, basil, parsley and more.

Veggie Garden Advice

Dig It! Your Gardening Questions, Answered 28 Videos

Master gardener and author of "Vegetable Gardening Wisdom" Kelly Smith Trimble answers commonly asked vegetable gardening questions.

Kelly Smith Trimble, editorial director, master gardener and host of HGTV's digital gardening series Dig It, talks about the easiest things for beginners to try to grow — like garlic — and which herbs are the most resilient and reliant. She also shares ways to avoid common pitfalls when growing tomatoes, cilantro and squash.

Spring Houseplant Care With the Plant Daddies

Stephen and Matthew from the Plant Daddy Podcast join Marianne to talk about how their houseplant obsession started (over 400 houseplants!). They then share tips for taking care of houseplants in the spring including adjusting how much to water, repotting, fertilizing and whether you should move them outside for the summer.

Next Up

Companion Planting With Cilantro

Cilantro serves as a powerful companion plant in the vegetable garden, attracting beneficial insects that prey on insect pests of a variety of crops, including tomatoes, peppers, eggplant, potatoes, beans and more.

What to Plant in August

It's not too late to plant, even in late summer. You can still grow short-season veggies, herbs and flowers in August from seeds or transplants.

Where to Buy Vegetable Plants Online

It's perfectly acceptable to grow many veggies and herbs from transplants instead of seed, and you can even order some online.

How to Plan a Vegetable Garden

HGTV can make vegetable garden planning less intimidating with tips on garden design and suggestions on how to choose vegetables to grow.

How to Grow and Harvest Rosemary

If planted in the right spot, rosemary is very easy to grow. Find expert advice and simple ideas for growing and using rosemary plants.

What Are the Different Types of Carrots?

Learn about the five types of carrots and which ones will work best for your garden.

Best Companion Plants for Cucumbers

Discover companion planting techniques to boost your crop of cucumbers and avoid common pests like cucumber beetles and squash bugs.

How to Install a DIY Drip Irrigation System

Learn how to install a highly efficient water delivery system that will help keep your landscape and gardens stay lush and quenched.

Seven of the Most Common Vegetable Gardening Mistakes

If you’ve made a few of these blunders, don’t get frustrated. Gardening takes practice, patience and the ability to learn from your mistakes.

The Best Kits + Tools to Get Kids Hooked on Gardening

Foster an interest in both indoor and outdoor gardening with these educational hands-on kits and kid-sized tools.


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