sentence: list of perennials perennial fruits apple apricot avocado banana blackcurrant blueberry currant feijoa grape kiwi fruit japanese wineberry pear persimmon pineapple plum raspberries strawberry strawberry tree tomato perennial herbs the following perennial plants are used as herb : agastache alfalfa althaea officinalis ( marshmallow ) african blue , east indian chives fennel ferula garlic ginger hops - humulus hyssop horseradish lavender lemon balm mint potato onions , shallots , egyptian onions , japanese bunching onions , welsh onions , chinese leeks oregano piper nigrum ( black pepper ) rosemary sage thyme valerian white horehound - marrubium vulgare achillea millefolium perennial vegetables many vegetable plants can grow as perennials in tropical climates , but die in cold weather .