sweet*
Here are some words that match your criteria:

- sweet
- sweet acacia
- sweet alison
- sweet almond
- sweet almond oil
- sweet alyssum
- sweet balm
- sweet basil
- sweet bay
- sweet bells
- sweet birch
- sweet buckeye
- sweet calabash
- sweet calamus
- sweet cassava
- sweet cherry
- sweet chestnut
- sweet cicely
- sweet cider
- sweet clover
- sweet coltsfoot
- sweet corn
- sweet corn plant
- sweet cup
- sweet elder
- sweet false chamomile
- sweet Fanny Adams
- sweet fern
- sweet flag
- sweet four o'clock
- sweet gale
- sweet goldenrod
- sweet granadilla
- sweet grass
- sweet gum
- sweet gum tree
- sweet lemon
- sweet lime
- sweet marjoram
- sweet melon
- sweet melon vine
- sweet nothings
- sweet oil
- sweet orange
- sweet orange tree
- sweet pea
- sweet pepper
- sweet pepper plant
- sweet pepperbush
- sweet pickle
- sweet potato
- sweet potato vine
- sweet reseda
- sweet rocket
- sweet roll
- sweet sand verbena
- sweet scabious
- sweet shrub
- sweet sorghum
- sweet sultan
- sweet talk
- sweet talker
- sweet tooth
- sweet unicorn plant
- sweet vermouth
- sweet vetch
- sweet violet
- sweet wattle
- sweet white violet
- sweet William
- sweet woodruff
- sweet wormwood
- sweet-birch oil
- sweet-faced
- sweet-potato ring rot
- sweet-potato whitefly
- sweet-scented
- sweet-scented geranium
- sweet-smelling
- sweet-talk
- sweetbread
- sweetbreads
- sweetbriar
- sweetbrier
- sweeten
- sweetened
- sweetener
- sweetening
- sweetheart
- sweetie
- sweetish
- sweetleaf
- sweetleaf family
- sweetly
- sweetmeat
- sweetness
- sweetness and light
- sweetpea
- sweetsop
- sweetsop tree