Nitrogen deficiency is the most common nutrient issue you'll run into. Because nitrogen is mobile, the plant pulls it from older lower leaves to feed new growth — so you'll always see symptoms starting at the bottom and working their way up. Affected leaves fade to a uniform pale yellow (tips first, spreading inward across the whole blade). Unlike magnesium deficiency, the yellowing is even across the leaf — veins and tissue all turn yellow together. It's most common during rapid veg growth when demand spikes, or when plants are root-bound or overwatered. Some yellowing of lower leaves during late flowering is completely normal as the plant redirects energy to buds — don't overcorrect it.
- Lower/older leaves turn slightly pale green
- Yellowing starts at leaf tips and spreads inward across the entire leaf blade
Iron is immobile, so deficiency always shows up on the newest growth first. This makes it easy to confuse with normal new growth, which is also naturally pale green — but healthy new leaves darken within a few days and are uniformly light, while iron-deficient leaves develop a distinct interveinal pattern and don't resolve on their own. The classic sign is interveinal chlorosis — young leaves turn yellow between the veins while the veins themselves stay dark green. What makes iron unique is that it can progress to nearly white leaves if left unchecked. If you're seeing leaves that are almost bleached white with green veins, that's a near-certain indicator of iron deficiency specifically. Unlike manganese deficiency which develops tan or brown spots between the veins, iron produces no spots at all — just clean yellowing or whitening. Another unusual trait: Fe-deficient leaves can actually recover and re-green from the tips inward once you fix the issue, which is rare for nutrient deficiencies. Browning of leaf tips and edges may develop in later stages. The primary cause is almost always high pH (above 7.0 in soil, 6.5 in coco or 6.1 in hydro), which converts iron into unavailable forms — it's rarely an actual shortage in the medium. Excess zinc, manganese, or copper can also lock out iron through competition, and cold root zones, overwatering, poor drainage, or excess phosphorus all reduce iron availability.
- Newest leaves turn pale green or light yellow while older leaves stay healthy — easy to mistake for normal new growth, but healthy new leaves darken within a few days while Fe-deficient ones won't
- Yellowing develops between leaf veins of young leaves — veins stay darker green
A labeled walking tour through the cannabis plant — leaf, stem, flower, and bract — across the three lineages that grow her: sativa, indica, and ruderalis.
- Every part named — leaf, node, cola, calyx, trichome
- How sativa, indica, and ruderalis differ at a glance
- The vocabulary the diagnostic tool speaks back to you
Feeding is one shifting appetite, not five separate dials. A woven walk through her five hungers — nitrogen, potassium, phosphorus, calcium and magnesium — as the mix turns from veg to bloom, with the share-and-PPM graphs behind each one.
- What nitrogen, potassium, phosphorus, calcium, and magnesium each do
- How her appetite shifts from veg to bloom
- Why what you feed her isn't what she holds
RQS's take on the Bubblegum family, built on a Power Plant x Santa Maria cross. The Bubblegum lineage started in Indiana in the early 1990s, with phenotypes refined in New England before the Dutch cut perfected by TH Seeds put the whole line on the international map. That Dutch pedigree earned the family a 2005 High Times Cannabis Cup and a Spannabis Cannabis Champion's Cup the same year, and the candy-sweet terpene profile has kept the variety in rotation ever since. RQS's XL version pairs that Bubblegum heritage with a Power Plant backbone for a plant with the signature nose but a sturdier, more commercial structure than the original Indiana cut.
G13 Haze is Barney's Farm's potent Sativa-dominant hybrid cross of G13 with Hawaiian Sativa — a strain built around the legendary G13 genetics (a line with its own mystique dating back decades) paired with pure Hawaiian Sativa heritage for tropical terpene character and the clean soaring cerebral effect that defines the Hawaiian landrace family. The split is 80% Sativa, 20% Indica, and the aroma and flavor profile reflect the tropical heritage directly: sweet candies, tropical fruit cocktail, and citrus dominate the palate, with a fruity, spicy, berry aromatic signature during growth. THC averages 23%, which is high for a Sativa-dominant strain and produces a powerful effect that's cerebral, uplifting, invigorating, and an active creativity booster.