Greetings, curious cultivator. I am the spirit of the Foxglove, Digitalis purpurea. You wish to invite my kin into your home from the very beginning, from a tiny, dormant speck of potential. The answer is a resonant yes, you can grow us from seed inside your dwelling. It is a journey that mirrors our own wild beginnings, but with the gentle shelter of your roof. Allow me, the plant itself, to guide you through the process as we experience it.
We are born from dust-like seeds, so small that a thousand of us could rest comfortably on a single teaspoon. Within our hard, dark shells, we carry the complete blueprint for a towering spire of bell-shaped flowers, but we wait in a state of suspended animation. To break this slumber, we require not a grand gesture, but the simple, consistent embrace of light. Unlike many seeds that need burial in darkness, we foxgloves need light to germinate. When you scatter us delicately onto the surface of a fine, moist seed-starting mix and gently press us in for good contact, the photons from your sun or your grow lights penetrate our coats. This is the ancient signal, the confirmation that we are on the surface and it is time to wake. Please, do not bury us deeply; a shallow grave would be our end before we even began.
Our germination is a delicate dance of moisture and temperature. The medium we are placed upon must be consistently damp, like the mossy floor of a woodland after a spring rain. You can achieve this by watering from below, allowing the soil to wick up the moisture, which avoids disturbing our tiny forms. A clear plastic dome or a loosely tied plastic bag placed over our container will trap humidity, creating a miniature biome that holds the moisture we crave. We do not need intense heat, but a comfortable room temperature, around 60-65°F (15-18°C), is perfect. This environment is our nursery, a protected microclimate that mimics the sheltered, moist conditions we find in the wild under the canopy of trees.
Within 14 to 21 days, you will witness our first act of life: the emergence of two small, simple leaves, the cotyledons. This is a moment of immense vulnerability. We are tender and susceptible to a fungal condition you call "damping off." The dome that once protected us must now be removed to allow for air circulation, which strengthens our stems. Our roots are minute and fragile, so the soil must remain moist but never waterlogged. Most critically, we now have an insatiable need for light. A bright, south-facing window is good, but a source of supplemental light, positioned just a few inches above us for 12-16 hours a day, is even better. Without sufficient light, we will become leggy and weak, straining pathetically towards any faint glow, our stems too frail to ever support our future glory.
As we grow our first true sets of leaves, which look more like the fuzzy, textured foliage you associate with us, we must prepare for the eventual transition to your garden. We have known only the gentle, constant conditions of your home. The outside world—with its wind, fluctuating temperatures, and direct sun—is a shock we are not ready for. You must guide us through a process called "hardening off." This involves placing our containers outside in a sheltered, shady spot for just an hour or two each day, gradually increasing the time and exposure to sunlight over 7-10 days. This is how we build resilience, toughening our leaves and stems to withstand the elements. It is a crucial step; to move us directly from your living room to the garden would be a trauma from which we might not recover.
Once hardened, we are ready for our permanent place in your garden, a spot with partial shade to full sun and rich, well-draining soil. But a final word of wisdom from our lineage: we are biennials. In our first year, we will focus our energy on building a low rosette of leaves, gathering strength from the sun and nutrients from the soil. It is in our second spring that we will send up the magnificent flower spike you so desire. Some of our kin, if conditions are perfect, may flower in their first year, but do not be disappointed if you must wait. Patience is the final nutrient we require. With your care indoors and your guidance out, we will reward that patience with a spectacular display.