Shrub Hydrangea macrophylla 'Bailmer' [sold as Endless Summer®] [Endless Summer Bigleaf Hydrangea] 'Bailmer' is an excellent mophead (hortensia) cultivar for cold climates, as it is hardy to USDA zone 4 and produces flowers on both old and new growth, unlike other Hydrangea macrophylla variants. As the name Endless Summer suggests, this plant blooms all summer, and even into the fall. An acidic soil will produce a very blue colored flower and alkaline pink. High quality foliage. Performs poorly on hot dry sites. A few pest problems, including…
Shrub Hypericum kalmianum 'Ames' [Ames Kalm St. John's Wort] Hypericum kalmianum 'Ames' is a compact, mounded deciduous shrub that produces attractive, interesting, bright yellow flowers in mid to late summer. 'Ames' is reported to have better winter hardiness than the straight species.
Shrub Hypericum kalmianum 'Gemo' [Gemo Kalm St. John's Wort] Hypericum kalmianum 'Gemo' is a compact, mounded deciduous shrub that produces a profusion of small, interesting, bright yellow flowers beginning late spring and continuing all the way into fall.
Shrub Indiana Native Hypericum prolificum [Shrubby St. John's Wort] Hypericum prolificum is a compact, rounded Indiana native shrub. The attractive bright yellow flowers, appearing in summer, are unique and crowned by a dome of many long stamens. This species can suffer in hot and humid environments, causing it to become prone to root rot and wilt.
Shrub Indiana Native Ilex glabra [Inkberry] This species, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Withstands severe pruning. Winter desiccation injury to leaves occurs in exposed sites, with severe yellowing when temperatures drop below -20 degrees F. Avoid high pH soils.
Shrub Ilex glabra 'Compacta' [Compact Inkberry] This hardy cultivar is compact and dense with an oval to rounded habit, but it tends to lose some of its lower branches with age. Ilex glabra, like other hollies, is dioecious, and 'Compacta' is a female cultivar, so plant a male pollinator for fruit set. Withstands severe pruning. Winter desiccation injury to leaves occurs in exposed sites, with severe yellowing when temperatures drop below -20 degrees F. Avoid high pH soils.
Shrub Ilex glabra 'Green Magic' [Green Magic Inkberry] 'Green Magin' is a dense, compact hardy cutlivar that tends to hold on to its lower branches better than many other variants of Ilex glabra. This species, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Withstands severe pruning. Winter desiccation injury to leaves occurs in exposed sites, with severe yellowing when temperatures drop below -20 degrees F. Avoid high pH soils.
Shrub Ilex × meserveae 'Conablu' [sold as Blue Prince®] [Blue Prince Meserve Holly] This male cultivar of the Meserve Holly is an excellent pollinator known for its hardiness, beautiful, lustrous, dark blue-green foliage, and dense habit. The Meserve Holly, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Blue Prince is considered to be a good pollinator for Blue Princess ('Conapry'). Winter dessication injury to leaves occurs in exposed sites.
Shrub Ilex × meserveae 'Conapry' [sold as Blue Princess®] [Blue Princess Meserve Holly] This female cultivar of the Meserve Holly is known for its hardiness, beautiful, lustrous, dark blue-green foliage, and heavily borne dark red fruits. The Meserve Holly, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Blue Prince ('Conablu') is considered a good male pollinator for Blue Princess. Winter dessication injury to leaves occurs in exposed sites.
