Plants you can plant and forget about to keep stocked at your IGC

Horticultural YouTuber Jim Putnam shares plants you can plant and forget during a Cultivate'23 session.

A man stands on a stage surrounded by many containers of plants. Above him is a sign that says Cultivate Live!
Horticultural YouTuber Jim Putnam shares plants you can plant and forget during a Cultivate'23 session.
Emily Mills

During Cultivate'23, Jim Putnam, host of HortTube with Jim Putnam on YouTube, hosted "Plant It and Forget It," with 12 options for independent garden centers to keep stocked for their customers.

Putnam — who has a relationship with Plant Development Services, Inc. and said his videos are "for plant nerds mostly" — said the following 12 plants are "some tough ornamental plants."

Ever Series Agapanthus

© Emily Mills (original photo from Jim Putnam)

Blooms very early and reblooms; fast-growing, tough and drought tolerant. Zones 8-11. Mature size 1-1.5 feet high and wide. Part sun to part shade. Needs dry conditions in winter.

"They'll come up, bloom like normally, and then they'll continue to bloom throughout the summer. Several different colors in this series," Putnam said. "The series is called Ever because they repeat bloom. I think they should be called bumblebee butts, because all you see is the back of bumblebees on every flower, which is kind of funny to see because they’re tiny little flowers — each of these flowers individually is tiny — and they try to dig their way in there.”

Autumn Moonstruck Encore Azalea

© Emily Mills (original photo from Jim Putnam)

Variegated leaves and brilliant white blooms in spring, summer and fall. Upright habit is ideal for hedges and accents. Zones 7-10. Mature size 5 feet high by 4 feet wide. Light shade to full sun.

“It's a variegated Encore Azalea," Putnam said. "All of our old evergreen variegated azaleas, the variation’s all over the place. You might have nine different variations on the same plant, or it reverts back to green. These are just clones of one another. It's amazing."

Green Valley Arborvitae


© Emily Mills (original photo from Jim Putnam)

Slower growing, more compact form of ‘Green Giant’ selected for disease resistance. Excellent for hedges and screening. Zones 5-9. Mature size 15-20 feet high by 6-8 feet wide. Full sun to part shade.

Putnam said this plant is "for those of you who don't want a 75 foot tall Green Giant...it's still fast growing."

‘Sterling Moon’ Lunar Lights Begonia


© Emily Mills (original photo from Jim Putnam)

Ideal for part shade perennial borders; puckered, forest-green leaves are frosted with silver and mint-green flecking; the salmon-pink flowers play nicely with pink highlighting on new leaves. Perennial in zones 7-9 or plant in containers in colder zones. Mature size 24-30 inches high and wide. Part shade.

"They bloom all summer long. Variegation’s amazing," Putnam said. "The back of the leaf...is almost perfect. So it's incredibly striking.” 

Bayou Bliss Distylium


© Emily Mills (original photo from Jim Putnam)

Blue-green cascading foliage on a pest and disease resistant, low water evergreen shrub. Compact habit. Zones 7-9. Mature size 2-3 feet high by 3-4 feet wide. Full sun.

"This is probably currently I think the best distylium on the market. It's the most compact growing distylium so far," Putnam said. "This is probably the most floriferous distylium so far."

Touch of Gold Holly


© Emily Mills (original photo from Jim Putnam)

Bright golden leaves on a dwarf, low maintenance rounded shrub. Disease and pest resistant. Zones 6-9. Full sun to part shade.

"Doesn't burn in the sun. Most of our gold conifers cook in the sun during summertime," Putnam said. “This is truly a plant and forget it plant. It’s gold 12 months out of the year."

Diamond Spire Gardenia

© Emily Mills (original photo from Jim Putnam)

Unique columnar growth habit, unlike any other gardenia on the market; single white fragrant flowers late spring, reblooming through summer. Zones 7-10. Mature size 3-4 feet high by 2 feet wide. Full sun to part shade.

“This is probably one of my favorite new plants," Putnam said. “This is an upright, narrow growing gardenia.”

Mini Touch Holly

© Emily Mills (original photo from Jim Putnam)

Attractive dark green foliage. Compact growth habit. Good Boxwood replacement. Easy care. Zones 6-9. Mature size 2 feet high and wide. Full sun.

"Soft Touch Holly sells in the millions every year," Putnam said. "This is an even more compact version of Soft Touch Holly."

Red Sky Holly

© Emily Mills (original photo from Jim Putnam)

This dense, upright, structural addition to consumers' landscapes adds color with its reddish new growth and black berries. Zones 6-9. Mature size 8 feet high by 3 feet wide. Light shade to full sun.

"All the new growth on it is red. Anytime it's growing, it's red," Putnam said. "No question this plant’s going to sell like crazy."

Platinum Beauty Lomandra

© Emily Mills (original photo from Jim Putnam)

Tough yet graceful. Drought tolerant and low maintenance; thrives in challenging environments. Zones 8-10. Mature size 2-3 feet high and wide. Needs dry conditions in winter.

"Lomandras are really kind of bulletproof grass-like plants," Putnam said. "They're native to Australia. We typically think about them being out on western areas. This one holds up incredibly well...just wouldn't think about these being as hardy as they are. So I think we should be using them in the southeast as well."

Pearls of Perfume Mock Orange Philadelphus

© Emily Mills (original photo from Jim Putnam)

Attractive deciduous shrub with fragrant double white flowers that repeat bloom from spring until fall. Zones 7-9. Mature size 5 feet high by 3 feet wide. Part shade.

"It's incredibly fragrant," Putnam said. "It's a spring blooming shrub that happens to continue to have one, two, three flowers on it the rest of the season." 

Roman Candle Podocarpus

© Emily Mills (original photo from Jim Putnam)

Unique white to light green new foliage; variegated. Upright habit. Disease, pest and deer resistant. Zones 7B-10. Mature size 10-15 feet high by 3-4 feet wide. Full sun to part shade.

Putnam called this plant “the showstopper.”

“This one, I have one in the full sun, and I have one in the shade, and they're literally identical in both spots," he said. "It's gonna get tall and narrow, but it's much slower growing...so it makes a great container plant.”