My number one tip for a complete beginner is simple but non-negotiable: choose your location BEFORE you choose your box. Do not fall in love with a planter online or in a store first. Your success starts with one critical step—observing your potential gardening space for at least 3-5 days.
Ask yourself: Where exactly will these boxes live? Is it a windy balcony, a sunny fire escape, a shaded patio, or a windowsill? This location dictates everything. You need to know how many hours of direct sunlight the spot gets—this determines what you can grow. You must measure the physical space meticulously—this determines the size and number of boxes you can fit. Consider weight limits on balconies and ease of access for watering.
By starting with the location, you shop with purpose. You'll buy boxes that truly fit, in materials suited to your micro-climate (like UV-resistant for full sun), with proper drainage for your setting. This first step prevents the heartbreak of a beautiful box that has no home or a home that kills your plants. Place first, then purchase.