Horticulture

All cacti are succulents. However, not all succulents are cacti. Actually, cacti are a very unique family. Their distinctive spines and thorns are very specialized leaves and stems. Such specialized leaves can not photosynthesize without green chlorophyll. Therefore, cacti rely on their succulent green...

Pruning at the proper time has been a concern all winter. Dormant pruning was timely as soon as defoliation began. It remains timely almost until bloom. Pollarding and coppicing are generally although unnecessarily a bit later within that range. Spring pruning begins soon after...

Home gardens and landscapes should be compatible with their respective climates. For local chaparral climates, plants that do not need much watering through the long and dry summers are appropriate. Aquatic plants are the extreme opposite. They require regular replenishment of the ponds that...

Dormant pruning last winter did more than concentrate resources for flowers and fruits. It did more than eliminate superfluous growth, which many pathogens overwinter in. It also directed or concentrated resources for stems and foliage. Such growth now grows faster than some types of...

Dormancy is not exclusive to vegetation. Many animals are dormant while they hibernate through cold winter weather. Some animals are dormant while they aestivate through hot and dry weather. Fungi and bacteria can maintain dormancy for many years or centuries. Dormancy is a technique...

Ferns are foliar perennials. They provide neither floral color nor fragrance. They provide neither fruits nor vegetables. With few exceptions, they provide no shade. The very few that are deciduous are not impressively colorful for autumn here. Ferns can not grow as hedges. Nor...

Winter is bare root season, which is the best time for installation of deciduous fruit trees. It is also the best time for dormant pruning of deciduous fruit trees. Evergreen fruit trees do not get much attention. Installation and any pruning of evergreen fruit...

Christmas trees and associated items are no imposition for nurseries. They are seasonal while not much else is appealing to a retail market. They occupy retail area that summer and autumn commodities relinquished earlier. Then, they relinquish their same space as bareroot stock becomes...

Old fashioned irrigation systems were quite thorough, and technically sustainable. They broadcast generous volumes of water over any vegetation that required it. Their systems were too simple to need much adjustment. Their metallic composition was very resilient. That is why so many old systems...

Oleander that inhabits freeway medians is poisonous enough to be hazardous. Two tons of Buick cruising at 65 miles per hour past such oleander has more potential to be hazardous. The risk associated with toxic plants within freeway medians is as limited as their...