Perennials Catalog Technical Information Crop Name Finish Time Wks 12 to 15 cm Optimal pH Optimal EC Cold Hardiness Grnhse Water Requirement Day length to Flower Height cm/ Width cm Growth Habit Breeding First Year Flowering Hemerocallis fulva Endlesslily® 12 to 14 5.5 to 6.5 1.0 to 1.5 5 to 10 Evenly Moist Neutral 51 / 51 Mounded Danziger √ Heuchera hybrida Kira™ 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Evenly Moist Neutral 25 / 25 Mounded Danziger Heucherella hybrida Kirella™ 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Evenly Moist Neutral 20 / 20 Mounded Danziger Iberis sempervirens 10 to 12 5.8 to 6.2 1.5 to 2.0 3 to 9 Moderately Dry Neutral 16 / 25 Mounded Syngenta Iberis sempervirens First Flush™ 10 to 12 5.8 to 6.2 1.5 to 2.0 5 to 9 Moderately Dry Neutral 15 / 25 Mounded Danziger √ Lamium maculatum Lami™ 8 to 10 5.7 to 6.8 1.0 to 1.5 3 to 8 Moderately Dry Long Day 15 / 61 Semi - Trailing Danziger √ Lamium maculatum 8 to 10 5.7 to 6.8 1.0 to 1.5 4 to 8 Moderately Dry Long Day 15 / 61 Trailing Open variety √ Lavandula angustifolia Layla™ 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Moderately Dry Facultative Long Day 40 / 25 Upright Danziger √ Lavandula angustifolia 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Moderately Dry Facultative Long Day 46 / 46 Mounded Open variety √ Lavandula stoechas Laveanna™ 12 to 14 5.5 to 6.5 1.0 to 1.5 7 to 9 Moderately Dry Facultative Long Day 40 / 30 Upright Danziger √ Leucanthemum superbum Lucille™ 8 to 10 5.7 to 6.8 1.0 to 1.5 5 to 9 Evenly Moist Facultative Long Day Multiple Upright Danziger √ Leucanthemum x superbum 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Evenly Moist Facultative Long Day Multiple Upright Terra Nova Leucanthemum x superbum 8 to 10 5.7 to 6.8 1.0 to 1.5 4 to 9 Evenly Moist Facultative Long Day 30 / 38 Upright Open variety Leucanthemum x superbum Whoops-a-Daisy 7 to 9 5.8 to 6.2 2.0 to 3.0 5 to 9 Evenly Moist Facultative Long Day 38/56 Upright Walters Gardens Monarda didyma 10 to 12 5.5 to 6.5 1.0 to 1.5 3 to 9 Evenly Moist Obligate Long Day Multiple Upright Future plants Monarda didyma Berry Taffy 8 to 10 5.8 to 6.4 1.5 to 2.5 4 to 8 Evenly Moist Long Day 40/60 Upright Walters Gardens √ Monarda didyma Electric Neon 8 to 10 5.8 to 6.5 1.5 to 2.6 4 to 8 Evenly Moist Long Day 55/50 Upright Walters Gardens √ Monarda didyma Pardon My 8 to 10 5.8 to 6.6 1.5 to 2.7 4 to 8 Evenly Moist Long Day 45/70 Upright Walters Gardens √ Monarda hybrida Leading Lady 8 to 10 5.8 to 6.7 1.5 to 2.8 4 to 8 Evenly Moist Long Day 35/55 Upright Walters Gardens √ Nepeta faassenii Cat’s Meow 8 to 10 6.0 to 6.6 1.5 to 2 3 to 8 Moderately Dry Long Day 50/90 Mounded Walters Gardens √ Nepeta hybrida Purple Haze™ 8 to 10 6.1 to 7.0 0.5 to 1.0 6 to 10 Moderately Dry Long Day 10 & 63 Upright Terra Nova √ Penstemon digitalis Dakota™ 6 to 8 5.5 to 7.0 1.5 to 2.0 3 to 8 Moderately Dry Neutral 30 / 45 Upright Terra Nova Penstemon hartwegii Flock of Flamingos 11 to 13 5.8 to 7.0 1.5 to 1.8 6 to 9 Moderately Dry Neutral 30 / 45 Upright Terra Nova √ Penstemon hybrida Cha Cha™ 6 to 8 5.5 to 7.5 1.5 to 2.0 7 to 9 Moderately Dry Neutral 24 / 28 Upright Terra Nova Penstemon hybrida Harlequin™ 10 to 12 5.5 to 6.5 1.0 to 1.5 6 to 9 Moderately Dry Long Day 56 / 41 Upright Terra Nova Perovskia atriplicifolia 12 to 14 5.7 to 6.8 1.0 to 1.5 3 to 9 Moderately Dry Obligate Long Day 91 / 61 Upright Open variety Phlox divaricata 8 to 10 5.5 to 6.5 1.0 to 1.5 3 to 8 Evenly Moist Neutral 25 / 25 Trailing Open variety Crop Name Finish Time Wks 12 to 15 cm Optimal pH Optimal EC Cold Hardiness Grnhse Water Requirement Day length to Flower Height cm/ Width cm Growth Habit Breeding First Year Flowering Hemerocallis fulva Endlesslily® 12 to 14 5.5 to 6.5 1.0 to 1.5 5 to 10 Evenly Moist Neutral 51 / 51 Mounded Danziger √ Heuchera hybrida Kira™ 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Evenly Moist Neutral 25 / 25 Mounded Danziger Heucherella hybrida Kirella™ 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Evenly Moist Neutral 20 / 20 Mounded Danziger Iberis sempervirens 10 to 12 5.8 to 6.2 1.5 to 2.0 3 to 9 Moderately Dry Neutral 16 / 25 Mounded Syngenta Iberis sempervirens First Flush™ 10 to 12 5.8 to 6.2 1.5 to 2.0 5 to 9 Moderately Dry Neutral 15 / 25 Mounded Danziger √ Lamium maculatum Lami™ 8 to 10 5.7 to 6.8 1.0 to 1.5 3 to 8 Moderately Dry Long Day 15 / 61 Semi - Trailing Danziger √ Lamium maculatum 8 to 10 5.7 to 6.8 1.0 to 1.5 4 to 8 Moderately Dry Long Day 15 / 61 Trailing Open variety Lavandula angustifolia Layla™ 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Moderately Dry Facultative Long Day 40 / 25 Upright Danziger Lavandula angustifolia 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Moderately Dry Facultative Long Day 46 / 46 Mounded Open variety √ Lavandula stoechas Laveanna™ 12 to 14 5.5 to 6.5 1.0 to 1.5 7 to 9 Moderately Dry Facultative Long Day 40 / 30 Upright Danziger √ Leucanthemum superbum Lucille™ 8 to 10 5.7 to 6.8 1.0 to 1.5 5 to 9 Evenly Moist Facultative Long Day Multiple Upright Danziger √ Leucanthemum x superbum 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Evenly Moist Facultative Long Day Multiple Upright Terra Nova Leucanthemum x superbum 8 to 10 5.7 to 6.8 1.0 to 1.5 4 to 9 Evenly Moist Facultative Long Day 30 / 38 Upright Open variety Whoops-a-Daisy 7 to 9 5.8 to 6.2 2.0 to 3.0 5 to 9 Evenly Moist Facultative Long Day 38/56 Upright Walters Gardens Monarda didyma 10 to 12 5.5 to 6.5 1.0 to 1.5 3 to 9 Evenly Moist Obligate Long Day Multiple Upright Future plants Berry Taffy 8 to 10 5.8 to 6.4 1.5 to 2.5 4 to 8 Evenly Moist Long Day 40/60 Upright Walters Gardens √ Monarda didyma Electric Neon 8 to 10 5.8 to 6.5 1.5 to 2.6 4 to 8 Evenly Moist Long Day 55/50 Upright Walters Gardens √ Monarda didyma Pardon My 8 to 10 5.8 to 6.6 1.5 to 2.7 4 to 8 Evenly Moist Long Day 45/70 Upright Walters Gardens √ Monarda hybrida Leading Lady 8 to 10 5.8 to 6.7 1.5 to 2.8 4 to 8 Evenly Moist Long Day 35/55 Upright Walters Gardens √ Nepeta faassenii Cat’s Meow 8 to 10 6.0 to 6.6 1.5 to 2 3 to 8 Moderately Dry Long Day 50/90 Mounded Walters Gardens √ Nepeta hybrida Purple Haze™ 8 to 10 6.1 to 7.0 0.5 to 1.0 6 to 10 Moderately Dry Long Day 10 & 63 Upright Terra Nova √ Penstemon digitalis Dakota™ 6 to 8 5.5 to 7.0 1.5 to 2.0 3 to 8 Moderately Dry Neutral 30 / 45 Upright Terra Nova Penstemon hartwegii Flock of Flamingos 11 to 13 5.8 to 7.0 1.5 to 1.8 6 to 9 Moderately Dry Neutral 30 / 45 Upright Terra Nova √ Penstemon hybrida Cha Cha™ 6 to 8 5.5 to 7.5 1.5 to 2.0 7 to 9 Moderately Dry Neutral 24 / 28 Upright Terra Nova Penstemon hybrida Harlequin™ 10 to 12 5.5 to 6.5 1.0 to 1.5 6 to 9 Moderately Dry Long Day 56 / 41 Upright Terra Nova Perovskia atriplicifolia 12 to 14 5.7 to 6.8 1.0 to 1.5 3 to 9 Moderately Dry Obligate Long Day 91 / 61 Upright Open variety Phlox divaricata 8 to 10 5.5 to 6.5 1.0 to 1.5 3 to 8 Evenly Moist Neutral 25 / 25 Trailing Open variety Crop Name Finish Time Wks 12 to 15 cm Optimal pH Optimal EC Cold Hardiness Grnhse Water Requirement Day length to Flower Height cm/ Width cm Growth Habit Breeding First Year Flowering Hemerocallis fulva Endlesslily® 12 to 14 5.5 to 6.5 1.0 to 1.5 5 to 10 Evenly Moist Neutral 51 / 51 Mounded Danziger √ Heuchera hybrida Kira™ 5.7 to 6.8 0.7 to 1.0 4 to 9 25 / 25 Heucherella hybrida Kirella™ 20 / 20 Iberis sempervirens 10 to 12 5.8 to 6.2 1.5 to 2.0 3 to 9 Moderately Dry Neutral 16 / 25 Mounded Syngenta Iberis sempervirens First Flush™ 10 to 12 5.8 to 6.2 1.5 to 2.0 5 to 9 Moderately Dry 15 / 25 √ Lamium maculatum Lami™ 8 to 10 5.7 to 6.8 1.0 to 1.5 3 to 8 Long Day 15 / 61 Semi - Trailing Danziger Lamium maculatum 8 to 10 5.7 to 6.8 1.0 to 1.5 4 to 8 Moderately Dry Long Day 15 / 61 Trailing Open variety Lavandula angustifolia Layla™ 12 to 14 5.7 to 6.8 1.0 to 1.5 5 to 9 Facultative Long Day 40 / 25 Upright Danziger Lavandula angustifolia 46 / 46 Mounded Open variety Lavandula stoechas Laveanna™ 5.5 to 6.5 1.0 to 1.5 7 to 9 40 / 30 Upright Danziger Leucanthemum superbum Lucille™ 8 to 10 5.7 to 6.8 1.0 to 1.5 5 to 9 Evenly Moist Multiple Leucanthemum x superbum 12 to 14 Terra Nova 8 to 10 5.7 to 6.8 1.0 to 1.5 4 to 9 30 / 38 Open variety Whoops-a-Daisy 7 to 9 5.8 to 6.2 2.0 to 3.0 5 to 9 38/56 Walters Gardens Monarda didyma 10 to 12 5.5 to 6.5 1.0 to 1.5 3 to 9 Obligate Long Multiple Future plants Monarda didyma Berry Taffy 8 to 10 5.8 to 6.4 1.5 to 2.5 4 to 8 Long Day 40/60 Walters Gardens √ Electric Neon 5.8 to 6.5 1.5 to 2.6 4 to 8 55/50 Pardon My 5.8 to 6.6 1.5 to 2.7 4 to 8 45/70 Monarda hybrida Leading Lady 5.8 to 6.7 1.5 to 2.8 4 to 8 35/55 Nepeta faassenii Cat’s Meow 6.0 to 6.6 1.5 to 2 3 to 8 Moderately Dry 50/90 Mounded Walters Gardens Nepeta hybrida Purple Haze™ 6.1 to 7.0 0.5 to 1.0 6 to 10 Moderately Dry 10 & 63 Upright Terra Nova Penstemon digitalis Dakota™ 6 to 8 5.5 to 7.0 1.5 to 2.0 3 to 8 Moderately Dry Neutral 30 / 45 Penstemon hartwegii Flock of Flamingos 11 to 13 5.8 to 7.0 1.5 to 1.8 6 to 9 √ Penstemon hybrida Cha Cha™ 6 to 8 5.5 to 7.5 1.5 to 2.0 7 to 9 24 / 28 Harlequin™ 10 to 12 5.5 to 6.5 1.0 to 1.5 6 to 9 Long Day 56 / 41 Perovskia atriplicifolia 12 to 14 5.7 to 6.8 1.0 to 1.5 3 to 9 Obligate Long Day 91 / 61 Open variety Phlox divaricata 8 to 10 5.5 to 6.5 1.0 to 1.5 3 to 8 Evenly Moist Neutral 25 / 25 Trailing Open variety 76
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