More in need of xeriscaping

• Not as rainy
• What a horse needs to qualify for the Preakness?
• More dry
• What a racehorse needs
• What any horse needs to win the Preakness?
• More desiccated
• More desperately in need of rainfall
• Having less rainfall

Wiktionary Word definitions in Wiktionary
a. (en-comparative of: arid )