Pampas Grass for Northern Zones 6-9 - Five White Erianthus ravennae Pampas - Up to 14' tall by HopeSpringsNursery on Etsy https://www.etsy.com/listing/244728886/pampas-grass-for-northern-zones-6-9-five
FAST *** Red Rocket Crape Myrtle | Red Rocket Crape Myrtles can grow up to 5 feet or more a year, and give you abundant blooms. Mature height is disputed among reputable nurseries/sources: 10-15' or 20-30'.
Scotch Pine Tree: Although most pine trees take years to grow, the Scotch pine is one of the fastest growing pine trees. Shoots up 2 ft. a season! Grows in a pyramidal form, 40-75 ft. tall. Stiff, bluish-green needles stay dense and thick all year long and block wind with a vengeance. Use needles for essential oil & pine straw mulching and landscaping!