My roses tend to like a well balanced food, 20-20-20. Honestly all roses just like to be fed, so it doesn't matter so much what you feed them, so long as you feed them.
Potted roses require watching, liquid food tends to get washed out with watering. Granules can build up.

Patio Hit roses are classified as miniature roses, so use whatever fertilizer you choose at half strength. Water your roses well the day before you feed them to avoid fertilizer burn.

Smiles,

Lyn