low maintenance, bright red perennials

[Ocelaris]

Yeah, triple super phosphate is probably fine, but I had done bone meal or regular phosphate, not sure what single is called.

Adding a cup of some phosphate fertilizer in the hole is the common tradition. Phosphate gets locked up pretty easily in the soil, as opposed to nitrogen, so if you're low, it doesn't hurt; but professor Google says it's not a huge deal either way. Since you probably already have a good idea of your soil deficiencies etc... If you're low, it's probably a good idea to add some, but if you already have enough it seems people don't seem much difference. Roses are heavy feeders, I give them a quarter to half a cup of osmocote slow release fertilizer (with micronutrients) in the early spring and late summer. Then water once a week deeply and slowly, twice a week if it's hot. Drip irrigation around the perimeter of the roots works great for this.

[HoosierLawnGnome]

Any reason normal starter fertilizer won't work? It's the same ingredients as the tiny expensive stuff haha.

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[Rokal]

Well I picked up several red double knockout rose shrubs on clearance tonight. I think I'm going to love them.

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Knockout roses grow quickly. I need to dramatically prune mine at least once a season to keep them in check. Otherwise, these are easy and look nice. I haven't had any issues with diseases or pests, including Japanese beetles.

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