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 Phlox paniculata Cloudburst 10 to 12 5.8 to 6.2 2.0 to 3.5 4 to 8 Evenly Moist Long Day 70/105 Upright Walters Gardens Phlox subulata Crater Lake 10 to 12 5.8 to 6.3 1.5 to 2.5 4 to 8 Moderately Dry Neutral 15/65 Groundcover Walters Gardens Phlox subulata Magenta Sprite 10 to 12 5.8 to 6.4 1.5 to 2.6 4 to 8 Moderately Dry Neutral 20/55 Groundcover Walters Gardens Phlox subulata Majestic Magenta 10 to 12 5.8 to 6.5 1.5 to 2.7 4 to 8 Moderately Dry Neutral 15/65 Groundcover Walters Gardens Phlox subulata Purple Sprite 10 to 12 5.8 to 6.6 1.5 to 2.8 4 to 8 Moderately Dry Neutral 20/54 Groundcover Walters Gardens Phlox subulata Rose Sprite 10 to 12 5.8 to 6.7 1.5 to 2.9 4 to 8 Moderately Dry Neutral 20/55 Groundcover Walters Gardens Phlox subulata 12 to 14 5.7 to 6.8 1.0 to 1.5 3 to 9 Evenly Moist Neutral 20 / 61 Trailing Open variety Phygelius Colorburst™ 8 to 10 5.5 to 6.5 0.7 to 1.0 7 to 10 Evenly Moist Neutral 91 / 61 Upright Terra Nova Rudbeckia ‘American Gold Rush 8 to 10 5.8 to 6.5 1.5 to 1.8 4 to 9 Evenly Moist Neutral 61 / 71 Mounded Intrinsic Perennials √ Salvia nemorosa Apex™ 10 to 12 5.5 to 6.5 1.0 to 1.5 4 to 9 Evenly Moist Neutral 36 / 25 Upright Danziger √ Salvia nemorosa Salvia Collection 8 to 10 5.8 to 6.2 .08 to 1.0 4 to 8 Medium Day Neutral 46 / 51 Upright Danziger √ Salvia nemorosa Sallyrosa™ 10 to 12 5.5 to 6.5 1.0 to 1.5 5 to 9 Evenly Moist Neutral 36 / 25 Upright Danziger √ Salvia nemorosa 10 to 12 5.5 to 6.5 1.0 to 1.5 4 to 9 Evenly Moist Facultative Long Day 41 / 30 Upright Open variety Saxifraga x arendsi Alpino Early™ 8 to 10 5.5 to 6.5 1.0 to 1.5 4 to 8 Evenly Moist Neutral 25 / 30 Mounded Syngenta Scabiosa columbaria 10 to 12 5.5 to 6.5 1.0 to 1.5 5 to 9 Evenly Moist Neutral 41 / 41 Mounded Open variety Sedum hybrida 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Moderately Dry Obligate Long Day 15 / 30 Mounded Terra Nova Sedum rupestre 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Moderately Dry Obligate Long Day 10 & 30 Mounded Open variety Sedum spurium 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Moderately Dry Obligate Long Day 15 / 46 Mounded Open variety Sedum telephium 12 to 14 5.7 to 6.8 0.7 to 1.0 4 to 9 Moderately Dry Obligate Long Day 46 / 51 Mounded Terra Nova Sedum telephium Rock ‘N Grow® 10 to 12 5.8 to 6.5 2.0 to 3.5 3 to 9 Moderately Dry Obligate Long Day 60/75 Upright Walters Gardens √ Sedum telephium Rock ‘N Low Yellow Brick Road 10 to 12 5.8 to 6.9 2.0 to 3.9 3 to 9 Moderately Dry Obligate Long Day 20/60 Groundcover Walters Gardens √ Sedum telephium Rock ‘N Round 10 to 12 5.8 to 6.10 2.0 to 3.10 3 to 9 Moderately Dry Obligate Long Day 30/50 Mounded Walters Gardens √ Silene x robotii 10 to 12 5.5 to 6.5 1.0 to 1.5 4 to 9 Evenly Moist Neutral 41 / 25 Trailing Open variety Veronica longifolia Ronica™ 10 to 12 5.7 to 6.8 1.0 to 1.5 4 to 9 Evenly Moist Obligate Long Day 30 / 30 Upright Danziger √ Veronica hybrida Magic Show® 8 to 10 5.5 to 6.2 2.0 to 3.0 4 to 8 Evenly Moist Neutral 40/50 Upright Walters Gardens Veronica spicata 10 to 12 5.7 to 6.8 1.0 to 1.5 3 to 8 Evenly Moist Facultative Long Day 61 / 61 Upright Open variety Perennials Catalog Technical Information 77 Zone 2 3 4 5 6 7 8 9 10 11 12 13 Temprature in 0c -45.6 to -40 -40 to -34.4 -34.4 to – 28.9 - 28.9 to -23.3 -23.3 to -17.8 -17.8 to -12.2 -12.2 to -6.7 -6.7 to 1.1 -1.1 to 4.4 4.4 to 10 10 to 15.6 15.6 to 21.1
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