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We\u2019re nearing our 150th episode mark and for us, that has meant a lot of plants discussed. But it\u2019s also meant a lot of great guest appearances. As you know, each episode we ask an expert from the field of horticulture to lend us their brains and weigh-in on some great plant choices for the topic at hand. We\u2019ve had guests who made us laugh, think twice about a much-maligned perennial, or even come to realize that there are far better options out there for our gardens. Who was our funniest guest? The one that made us seriously reconsider our planting choices? Or the one who made us grip the steering wheel with white knuckles (yes\u2014that did actually happen)? Tune in now to find out and listen to our favorite guest segments.

Featured guests:

\xb7\xa0\xa0\xa0\xa0\xa0\xa0 Riz Reyes, a horticulturist and floral designer based in Seattle.

\xb7\xa0\xa0\xa0\xa0\xa0\xa0 Richard Hawke is the director of ornamental plant research at the Chicago Botanic Garden in Glencoe, Illinois.

\xb7\xa0\xa0\xa0\xa0\xa0\xa0 Irvin Etienne is curator of herbaceous plants and seasonal garden design for The Garden at Newfields in Indianapolis.

\xb7\xa0\xa0\xa0\xa0\xa0\xa0 Sabrena Schweyer and her husband, Samuel Salsbury, own and manage Salsbury-Schweyer Inc., a sustainable landscape design and development group based in Akron, Ohio. Read her latest article here: https://www.finegardening.com/article/replace-a-front-lawn-with-a-beautiful-eco-friendly-garden

Irvin Etienne\u2019s Upgraded Classics

Classic: \u2018Flamenco\u2019 red-hot poker (Kniphofia uvaria \u2018Flamenco\u2019, Zones 5\u20139) Photo: David J. Stang, via Wikimedia Commons

Upgrade: \u2018Mango Popsicle\u2019 red-hot poker (Kniphofia \u2018Mango Popsicle\u2019, Zones 6\u20139) Photo: Irvin Etienne

Classic: \u2018Fireball\u2019 hardy hibiscus (Hibiscus \u2018Fireball\u2019, Zones 5\u20139) Photo: courtesy of David J. Stang, via Wikimedia Commons

Upgrade: \u2018Holy Grail\u2019 hardy hibiscus (Hibiscus \u2018Holy Grail\u2019, Zones 4\u20139)

Classic: \u2018Storm Cloud\u2019 lily of the Nile (Agapanthus \u2018Storm Cloud\u2019, Zones 7b\u201310) Photo: \xa9Armitage/Hip Labels, LLC

Upgrade: \u2018Galaxy Blue\u2019 lily of the Nile (Agapanthus \u2018Galaxy Blue\u2019, Zones 6\u201310) Photo: Irvin Etienne

Classic: \u2018Black Knight\u2019 butterfly bush (Buddleia davidii \u2018Black Knight\u2019, Zones 5\u20139)

Upgrade: \u2018Grand Cascade\u2019 butterfly bush (Buddleia \u2018Grand Cascade\u2019, Zones 5\u201310) Photo: Irvin Etienne

Classic: Mimosa (Albizia julibrissin, Zones 6\u20139) Photo: Simon Garbutt, via Wikimedia Commons

Upgrade: \u2018Summer Chocolate\u2019 mimosa (Albizia julibrissin \u2018Summer Chocolate\u2019, Zones 6\u20139)

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Richard Hawke\u2019s Favorite Vines (original episode #37)

'Guernsey Cream' clematis (Clematis 'Guernsey Cream', Zones 4-9)

R\xfc\xfctel\u2122 clematis (Clematis 'Kiviruut', Zones 4-9)

'Madame Julia Correvon' clematis (Clematis 'Madame Julia Correvon', Zones 4-9)

'Princess Diana' clematis (Clematis 'Princess Diana', Zones 4-8)

\u2018Prince Charles\u2019 clematis (Clematis \u2018Prince Charles\u2019, Zones 4-8)

Variegated kiwi vine (Actinidia kolomikta, Zones 4-8)

Climbing hydrangea (Hydrangea anomala petiolaris, Zones 4-8)

Japanese hydrangea vine (Schizophragma hydrangeoides, Zones 6-9)

Chinese Virginia creeper (Parthenocissus henryana, Zones 7-9) credit: Doreen Wynja

American wisteria (Wisteria frutescens, Zones 5-8)

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Sabrena Schweyer\u2019s Problem-Solving Perennials

Pennsylvania sedge (Carex pensylvanica, Zones 3\u20138)

\u2018Eastern Star\u2019 white wood aster (Eurybia divaricata \u2018Eastern Star\u2019, Zones 3\u20138)

Obedient plant (Physostegia virginiana, Zones 3\u20139)

Short-toothed mountain mint (Pycnanthemum muticum, Zones 4\u20138)

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Riz Reyes\u2019 Favorite Container Plants (original episode # 86)

'Kiwi Fern' coleus (Plectranthus scutellarioides \u2018Kiwi Fern\u2019, Zones 10-11)

Aeonium (Aeonium spp. and cvs., Zones 9-11)

Shearer's felt fern (Pyrrosia sheareri, Zones 7-10)

\u2018Dancing Queen\u2019 hosta (Hosta 'Dancing Queen', Zones 3-8)