OLEANDER HARDY WHITE-WHITE BLOOMS (Full Gal.) We offer these in Full Gal and 5-Gal. Oleander hardy dbl White fragrant blooms They will be sent to you bare root via USPS Priority Mail. Full sun to Zone 8 (10-20 degrees) Oleander grows to 620 ft tall at maturity. All parts of plants are poisonous. This offering is for a Full Gal.